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What is the extent of Bartolomeo's Devil Fruit power?
Bartolomeo has quite a strong Devil Fruit.
In the Colosseum...

 ...he could block every punch with his Barrier fruit. He was really bored in this fight and had no problems at all.

 For your information, the "King Punch" he blocked from "The Fighting King" Elizabello II is said to be more powerful than a Yonko. Elizabello II - Wiki

So my question is, can he really block everything?
Can it block beams, like the Slow-Slow Beam from Foxy, and shock waves, like what Whitebeard created with his Gura Gura Fruit?

the power of devil fruit depend on the strength of the devil fruit user. With this I really doubt that he can block Whitebeard attack. I don't know if it's beam from Foxy or Boa.

Actually i found this in the wiki about Elizabellos KING PUNCH "It is rumored that one of his punches could even overpower a Yonko."
-http://onepiece.wikia.com/wiki/Elizabello_II

Whitebeard could break oceans, so I don't think he will have much trouble breaking a barrier though. Especially from a rookie, but other than that I think you will have to wait till next chapter to see the extend of his power.

I think this question has multiple answers, because one piece has proven anything can happen in terms of powers/ability and weaknesses.  For example Buggy while a joke character and definitely not the strongest by any means was impervious to Mihawk's slashes. Same with Magellan(poison) and Mr 3(wax/candle).  So he very well could probably block a direct shockwave from White Beard, but with that said, White Beard is very intelligent fighter and I'm sure he would just easily work around that by targeting the ground under him or something.

So far the barrier is unbreakable and can not be penetrated by anything that attack him. So for now there is a possibility that the barrier can block anything. And I think it's not opinion based question, he didn't ask if Bartolomeo can defeat Whitebeard, but simply asking if the barrier can block anything or not. This can be answered by some new chapter.

Wikia claims it is unknown at this point whether the barriers have a damage limit and I agree on this. There has been no proof yet of something that could damage the barriers. So as of writing (chapter 788) it would seem that the barrier would indeed be indestructible.
The strongest things we have seen the barrier block are:

King Elizabello II's King punch, which could allegedly take down an entire fortress. (chapter 709)
Hakuba's slashes (chapter 773)
Gladius' full body rupture (chapter 773)
The Birdcage (chapter 788)
Chinjao's Haki imbued drill (chapter 788)

The only limitations we have seen so far are:

It cannot block sound (chapter 742)
It has a surface area limit (chapter 754 and 757)
Only one barrier can be produced at the same time. (chapter 773)

As of now it does not seem like he would be able to block the slowbeam from Foxy, as that would consist of pure waves similar to sound or light. On the other hand, the beam from Franky would probably be blocked. Similar to King Elizabello II's King punch, it also seems that he would be able to block Whitebeard's shock wave.

Additionally, Oda has answered this question himself on the Volume 77, Chapter 773 SBS, saying Bartolomeo's barriers are indeed limited to one at the time and have a maximum capacity of 50.000 Bari-Bari or 500 Pickle-Pori-Pori-Bari-Bari's.

Reader: Oda-san, hello~. About Bartolomeo, he said something about how his barriers have a limit or whatever, so how many Bari-Bari's worth is its maximum capacity?                                               P.N. Hoichael Jackson
Oda: Great question. There is in fact a limit to the space his barriers can cover, as well as how many barriers he can put up at a time. He can only hold up one barrier at a time, and they say that this one barrier can cover up to 50 thousand Bari-Bari's!! Amazing! 1 Bari-Bari equates to roughly 100x that of 1 Bori-Bari-Bari, so in other words, his barrier capacity is just about 500 Pickle-Pori-Pori-Bari-Bari's.
(Translator's Note: Bari, Bori, and Pori are all Japanese sound effects that roughly translate to 'crunching'.)

TL;DR: Damage limit is unknown if it even exists but more importantly it only generates in limited spaces

He can produce more than one but limited barriers at a time. Else the answer is good.

@abhishah901 My reference was indeed wrong, but Bartolomeo did mention that he could only produce one at a time in chapter 773 at the end of the fight with Gladius


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Can a Devil Fruit user drown in a bathtub?
If a Devil Fruit user goes to a bathtub full of water or gets into a spa, will he drown?

Pirates don't need to shower >:D

@Dimitrimx What about marine devil fruit users? xD

It's worth pointing out that in Japanese, hot water (湯) like that used for baths and cool/room temperature water (水) like seawater are completely different words, and as far as I know only the latter is explicitly stated to affect devil fruit users.  There could be some case that I've forgotten where hot water was used, but barring that one might suspect that only normal water would affect them. It would not be the first time such a distinction was made in anime (and subsequently not made in the English translation).

Devil fruit user would feel like a heavy hammer when their full body is soaked with water which is only then the curse will take effect. When they are half-filled with water, they can still overcome the curse.

@berserk I wondered this more often about your questions. How come you never accept answers here on A&M, like this question for example, which has a bunch of good answers.

@PeterRaeves Well its just that I am not satisfied by the answers :)

@berserk I see. Since two of them were mine, I'll try and put more effort into it next time :)

@PeterRaeves ok :)

From what we have seen previously it doesn't seem so.

jihahahahhaha :D

By the way, it is just his legs inside water. What if he get fully inside. Will he get paralyzed?

Probably. We should wait for such a situation to happen yet to be sure.

This should be the accepted answer turns to stone
On topic: Boa Hancock is a Devil Fruit User herself, and she was seen to be in the bath completely, not just her legs. Also Luffy fell in and was able to stand up again.

Wiki states: "He elaborated on this, saying that "moving" water, like rain or waves, does not weaken Devil Fruit users, while standing water does." According to the wiki Luffy and Boa should be affected and it shouldn't be possible for Boa Hancock to take a bath like that. They can only take a shower, not a bath. But what would anime be without fan service ^_^. It's like how Nami shouldn't be able to actually hurt Luffy, yet she can knock him out without Haki.

Could this probably be the actual reason why Luffy doesn't turn to stone from Hancock's Devil Fruit? I always find the official explanation kinda unsatisfactory.

@LieRyan no. The official explanation is the official explanation :)

@LieRyan Luffy is way too pure-hearted for that. He gets as aroused by Boa as he does by Blackbeard. Heck, he probably even gets more aroused by Blackbeard tbh.

What about making the water in your bath "move"? They could install a system that makes the water circulate or, a bit more wasteful, permanently release some water and replace it. At the other hand, the ocean is not still itself and DF users drow in rivers, don't thes?

So, straight from the wikia on Devil Fruit :

With this new power comes a weakness: the sea rejects the new Devil
  Fruit user and they become helpless while submerged in water (or
  "become a hammer," in Japanese parlance). Oda stated in SBS that
  Devil Fruit users are susceptible to all types of water, not just
  seawater. This includes the white sea surrounding Skypiea. He
  elaborated on this, saying that "moving" water, like rain or waves,
  does not weaken Devil Fruit users, while standing water does.
Oda also said in an SBS that it is not until a Devil Fruit user is knee deep in water that they become immobilized. This is seen with the Gorgon sisters and Luffy in Boa Hancock's bath. Brook was also seen slowly losing his strength as the water levels increased in the floods in Ryugu Palace, demonstrating that being in contact with the sea does not instantly rob their strength unless it reaches a certain level.

So, it really depends upon the depth of spa or water tub. And since they lose the ability to swim they will eventually drown if the water is deep enough.

Coming into contact with sea water (or seastone) renders devil fruit users unable to use their power, and also they are unable to swim at all. Hence why they will sink if thrown into the sea - cannot either swim or use any powers to escape.
But as for bath tubs or spa, its not like normal users go swimming in them either. Someone could probably knock out Luffy easily when he's standing in a spa (since his rubber nature is negated) and then he'd die when his body slipped into the water due to drowning. But otherwise I believe devil fruit users could use spa normally even if it was salty water, so long as they are able to breathe normally.

A very nice description is given on the One Piece wikia , it says it depends on the level of water, they don't completely immobilize if the water is only knee deep . But their powers are affected that is they can't use their powers in any form of water . Obviously if the bath tub is deep enough they can drown .
Their powers when in water can be manipulated by outside forces as in we saw during Arlong Park arc that Nojiko and Genzo pull Luffy by stretching his neck .

Interesting point, didn't realize Luffy is still rubber in water even if he can't use his power.

Like some of the other answers said: no. Small amounts of water are fine.
If you think about the sea stone and the similar effect it has on devil fruit users, I think it's safe to assume that the water itself is not the problem, but rather the sea element of the water. Rivers, oceans. etc are deadly for this reason, but other water sources like drinking water, rain, etc are fine.

Any type of water will affect a Devil Fruit users if they're submerged in it, including the cloud sea. But you need to be submerged in it for it to have an effect. So something like Luffy standing in waist-high water (like when he crashes in on Boa Hancock) isn't a problem. But if it gets higher than that, then it starts to effect them and drains their powers and keeps them from moving. And since you can't move, you can't swim.
So as long as you're careful about it, you won't drown. But if they fall in and nobody's around to help you, then you're screwed unless you're a fishman like Mammoth Jack. Then, you'd be able to breathe underwater until eventually someone hopefully stumbled onto you and pulled you out. You still wouldn't be able to swim, but you at least won't drown if you're a fishman, so that's something.
Anyways, it's a risk. Which is why Oda mentioned in an SBS that most Devil Fruit users just take showers since, unlike standing bodies of water, showers or rain don't affect Devil Fruit users and there's no chance of you drowning.
TLDR: They won't drown unless they're at least submerged up to their chest and there's nobody around to pull them back out.

No they won't drown because its not "sea water". Sea power basically sucks all their devil fruit power away and considering the amount of water in a bathtub, they won't drown even if it is full of sea water.

I have always thought it referred to the Bible verse Luke 17:2 "It would be better for them to be thrown into the sea with a millstone tied around their neck than to cause one of these little ones to stumble." The millstone is sometimes restated as an anchor and isn't the devil fruit supposedly giving super powers because of a demon inside them? The devil fruits weakness would be better viewed as an anchor that is pulling the user down and that is why it makes them feel weak and unable to swim. That's why it normally only effects the user when it is in more than knee deep of water versus rain, it is literally trying to drown the user. Just my thought on the matter.

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Where is Pride's Homunculus tattoo?
My brother and I were talking about the symbolism behind the location of the Homunculi's tattoo's location (i.e. Greed's is on his hand because he wants to get a hold of everything, Gluttony's is on his tongue because he wants to eat everything, etc.) and after reading all of the Fullmetal Alchemist manga three times over, neither of us could remember the location of Pride's Homunculus tattoo.

In the manga and Brotherhood, Pride does not have an Ouroboros tattoo. He instead has only a small circular mark on his true form's body.
Below is an image of said mark, but definitely contains spoilers for anyone not finished episode 37 of Brotherhood (and perhaps could be considered spoiler material for anyone who has finished episode 64).

This mark is present only after the defeat to Elric, What about before that?

@Bej: the mark probably wasn't there. Note that post-Promised Day, the mark on Selim's forehead is rather low, so it doesn't seem like it'd be hidden pre-Promised Day under Selim's hair. (Some references in my answer here.) It also doesn't make sense for Pride's shell (which is only holding his true form and isn't his actual body) to have the mark when it would probably only arouse suspicion.

On the FMA Wikia it states and from general knowledge on my part in the 2009 & Manga...

Pride is the only Homunculus without an Ouroboros, instead having a circular mark on his true form's forehead.

Oroborus meaning...

"He Who eats his tail"

But in the 2003 Anime from my memory, is that...

Prides Ouroborus is located on his left eye and in the 2009 Manga share a similarity to another Homunculus, Wrath (Also his Father)

Just pictures of what the Ouroborus looks like. On the left is in the Anime and on the right the Manga.
More information can be obtained here and here.

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Is there an explanation for Natsu's motion sickness?
In Fairy Tail, Natsu is prone to getting sick whilst on modern transport. I am asking this question because it kind of annoys me when he gets motion sickness while fighting someone on board train or other forms of transport. These are the known forms of transport that he gets sick on such as...

Cars
Trains
Vehicles
... And many and all forms of transport that moves.
I think an exception to his motion sickness is when he is flying on Happy, but can't really think of anything else that he doesn't get motion sickness on.
And waves, just discovered in Episode 133 (quite strange).

Generally, he gets motion sickness from all non organic transportation. He also gets motion sickness when riding on other people. He is also known to get sick from looking or thinking about all different forms of transport, e.g. looking or thinking about trains.
Was it ever explained in the anime or manga why Natsu suffered from motion sickness? And why did Wendy's motion sickness spell not work at all? Did something happen to Natsu in his life that made him suffer from motion sickness? If yes, please include it in the answer! Also, please refrain from using the reason "Natsu built up immunity to Wendy's motion sickness spell" in your answer, unless that's all you can possibly give me.
Answers are kindly appreciated.

It's a disadvantage of having Dragon Slayer magic. This is confirmed in episode 161 - Chariot - by String, Rogue, Laxus, Gajeel and Natsu. They all have the sickness. The reason why Wendy doesn't have it, is what Sting said to Gajeel, who noticed the sickness for the first time. When you become a "real" DS (read: strong enough), you gain the sickness. That's why Gajeel didn't have this during the S-class tournment. Laxus confirmed that it also doesn't matter whether you are a 1st, 2nd or 3rd generation DS, they all have it.

Also, Wendy's magic does work as was shown previously. It just loses it's effectiveness the more it is used due to the immunity that is built up. That's why she only wants to use it in situations that matter.

Personally, I find the Lucy Sickness the most hilarious!! +1 Happy. :)

Not only Natsu, but every wizard having Dragon Slayer Magic is prone to motion sickness. During the Grand Magic Tournament, all four Dragon Slayers suffered from motion sickness, i.e. Natsu, Gajeel, Rouge, and Sting. It is also confirmed in the anime that, Laxus suffers from motion sickness as well. The only exception is Wendy, but considering that she has Magic to counter motion sickness, it might not be affecting her.
It has not been explained, but it is likely due to a side effect of the Dragon Slayer Magic.
Wendy's Magic does not affect Natsu because he built up immunity. This was specifically stated by Wendy herself.
Also, Happy doesn't affect Natsu because Natsu doesn't consider Happy as a vehicle. This was also specifically mentioned by Natsu.
Edit as per the latest chapter: The motion sickness is caused due to inability of dragon slayer magic holder to adjust with the dragon's enhanced visual acuity which affects their semicircular canals.

Are you sure it is a side effect of dragon slayer magic. I have only so far seen Natsu who has displayed having motion sickness. In the Wizard Tournament it was probably a one off, but Natsu has it all the time.

not actually sure as not mentioned anything regarding that anywhere till now. but in the tournament gazeel says that he didn't have motion sickness but generates motion sickness after the tournament. so there might be some threshold point after which it affects dragon slayers. and natsu being hero of series must be powerful enough to have crossed that point.

Addition to your answer @Sp0T, I am guessing it has something to do with age as a Dragon Slayer, because Laxus is actually affected by it as well as said in the anime during the grand magic games. So theoretically it might be every single dragon slayer that is affected like how every devil fruit user cannot swim in One Piece

Wouldn't they be able to get around this weakness by closing their eyes?

As an addition to Sp0T's answer, it seems like they have to be in a more advanced level of Dragon Slayer Magic to experience motion sickness. Just like Gajeel in Phantom Lord arc with their moving guild, and in Tenrou Island arc when they get to the Island by ship, he doesn't seems to have problem with motion sickness. However, just after his three month training for Grand Magic Tournament, he gets motion sickness.

In real life, motion sickness is caused by mixed signals from your senses, i.e. your eyes tell you the train isn't moving, as you are moving with it, however, your sense of balance feels all the bumps and swaying and tells you that you are moving. The result is confusion leading to nausea.
Putting that into the context of Fairy Tail, Dragon Slayers are shown to have heightened senses, Natsu more so than the others, probably because he is strong. So my guess is, stronger senses means stronger mixed signals and stronger motion sickness.

Sting said that when you become a real dragon slayer, you start to suffer the motion sickness. Maybe Wendy doesn't have it because she's not at that level yet, which means that Natsu has been a strong dragon slayer since the beginning and was stronger than Gajeel up until the episode 161 Chariot.

Not sure what you mean, so I just edit and remove the part that doesn't make sense from your answer.

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Are the Dragon names based on anything?
Just some random curiosity about the Dragons in Fairy Tail.

Acnologia,
Igneel,
Grandeeney,
Weisslogia,
Metalicana,
Skiadrum,
Atlas Flame,
Zirconis,
Motherglare,
Scissor Runner,
Revire,
Dark Dragon,
Rock Dragon

Are their names based on anything?

It seems some of their names have parts which relate to their nature:

Weisslogia: Weiss or Weiß is German for "white". Sting performs White Dragon Slayer to produce beams of sacred light, so we can see how White factors into Weisslogia's name.

Metalicana: Obviously, the use of Metal in its name reflects the Iron Dragon Slayer Magic Gajeel uses

Skiadrum: Skia or "σκιά" is Greek for shadow, and Skiadrum is the Shadow Dragon.

Atlas Flame: Atlas is the name of a Greek god, but I do not know how it would relate to the character. Images I have seen of this dragon show that it's totally wrapped in flames, and its title is also the Flame Dragon

Motherglare: This may be related to its Egg Magic. In most cases, mothers use a form of egg to give birth to children. In a lot of fictional works, Dragons lay eggs to give birth.

Scissor Runner: May be a reference to the two huge spines coming out of the top of its head and its chin

Rock/Dark Dragons: Obviously for their appearance. However, those aren't their names, but how they are referred to due to their appearance.

(Revire has a somewhat aquatic appearance, and its name is pronounced as "Rivaia", which kinda sounds like river. However, that is a long shot.)

Igneel In Latin the word Igne means fire which reflects the fact that he is the fire dragon king.

Acnologia : "Acno" is a Greek word used to reference aging. The word "Logia" is a Greek word that translates roughly as "sayings, utterances, oracles". Thus you could interpret his name as the Ender of Eras or The Prophet of the End.

Grandeeney In Japanese Grandeeney’s name is Grandine, which is a Italian word that means "hail."
I should point out that I have not read the manga nor watched enough of the anime (I have seen like 50 episodes), and I found out all of these by google searching for images, picking apart their names and looking up Wikipedia articles. Someone else may have a more accurate answer. These are just my observations and may help others fill in holes in their own research.

I like your answer, my main curiousity came from Igneel thou. Made me think of Ignite. Dragon was indeed a typo and I removed it from the list ;)

@Dimitrimx you have a point there with Igneel however that's kinda like what i said about Revire, however who know maybe the writers thought the exact same thing but i'm not a mind reader

バイスロギア (Weisslogia) as the furigana to 白竜 (White Dragon), スキアドラム (Skiadrum) as the furigana to 影竜 (Shadow Dragon).

To add to the list,
Igneel: most likely derived from Ignis, which means fire.
Grandeeney: She's the skydragon, named Grandine in Japanese. This translates to hail from Italian, which might explain the relationship
Acnologia: "Acno" is a Greek word used to reference aging. The word "Logia" is a Greek word from New Testament scholarship that translates roughly as "sayings, utterances, oracles". His name could thus be translated as "The Prophet of The End," as well as "Ender of Eras"

I believe Igneel comes from igneous rock, which refers to rocks formed through the cooling and solidification of magma or lava.
The other two kinds of rocks are sedimentary and metamorphic. Sedimentary rocks form from once-living things (examples are fossils and coal). Metamorphic rocks are igneous rocks that were reheated after they were formed.
Therefore, seeing as igneous rocks are the only ones formed by magma/lava, that's where I figured it came from.
The name probably also comes from "ignite", but I might be overthinking about it.
Source(s): Science teacher


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Can a person shorten their own life by using the Death Note?
I was reading about the rules of the Death Note on Death Note wiki and I came across this certain rule...

A person can shorten his/her own life by using the note.

What does this rule mean?
Does it mean that when Light uses the Death Note, he loses some of his life? I find it unlikely since he would have died quite a while ago.

Besides the fact that one can trade half his lifespan for improved usage of the Death Note,

The human who becomes the owner of the Death Note can, in exchange of half his/her remaining life, get the eyeballs of the god of death which will enable him/her to see a human’s name and remaining life span when looking through them.

A user also can write down their own name in the Death Note. This will cause the user to die early due to their own described causes. Of course the rules of the book still apply, meaning that the user's death as written in the note wont take effect if this occurs after his already stated point of death. Therefore, one can shorten his life using the note.

L does this in the second Death Note Live Action Movie by writing his name and stating that he'll die in his sleep, by doing that he became immune to any other from of death produced from his name being written in any other Death Note, unlike the anime this is how Light is found out to be Kira by L (rather than by N). since the live action movies take a difference cause than the manga or anime i'm not sure if this is cannon

@Memor-X The C-Killer also does this in the one-shot from Death Note. Not sure if that would be considered canon either. https://i.sstatic.net/SwciH.jpg


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How did Sanji get his Diable Jambe ability?
I was reading through the CP9/Enies Lobby arc, Sanji reveals that he has the ability to heat up his legs to the point that anything he touches with the spontaneously combusts. How is it that he got this ability?

by training? All luffy's crew have new ability in that arc

@Dimitrimx Enies Lobby arcs IS before time skip after the incident in Sabaody Island. Or you have another time skip in mind?

@ShinobuOshino My bad >.> I should really stop browsing this when sleepy.

Sanji was the disciple of Red Leg Zeff, obviously while learning he must have created his own set of skills just like Zoro. He just didn't meet anyone who is strong enough (and/or made him angry enough) to use it.

@AbhilashK Sanji seems really angry with Absalom though. Absalom steal his dream.

@ShinobuOshino Both of his dreams, the Devil Fruit and the Nami.

Sanji was Red Leg Zeff's disciple. Red Leg Zeff was famous, as his name suggests, because of his red leg. He was known to kill all his enemies using his leg, which used to be smeared with their blood.
Imitating his master, Sanji created his own set of skills. He created the Diable Jambe, in which he rapidly spins and focuses all his energy into his leg, heating it up and forming a red leg which is so hot that anything in makes contact with, spontaneously combusts. After the time skip, he can use Diable Jambe without spinning to make his leg heat up.
How and when he created this technique has not been revealed and is less likely to be revealed. So as @AbhilashK mentioned in comments, he just didn't meet anyone who is strong enough (and/or made him angry enough) to use it till the Enies Lobby arc.

Sanji seems pretty angry when Absalom saw Nami in bath and want to marry her, especially when Sanji know that he ate the devil fruit that Sanji really want, but yeah, he didn't deserve to meet diable jambe.

Absalom was after Enies Lobby and, hence, the introduction of Diable Jambe...

@kaine oh, yeah you're right, they were pretty weak compared to CP9 so I mistake it happen before Enies Lobby arc

I think it’s because when he was a child, he was enhanced to have elemental powers like his siblings but they lose most of their humanity. Unlike his siblings, Sanji isn’t robotic and has true human emotions due to the pill his mother took. I guess Sanji only used Diable Jambe on Enies Lobby because I think he just mastered his power at that time skip.

Please provide additional information or citations for this answer.


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Why is Ulquiorra the only Espada with a second release?
In Bleach Ulquiorra is the only Espada with a second release, and he admits he has not shown Aizen. So I have come to a few questions:

Why would he not show Aizen how powerful he is?
Why is he the only Espada with a second release?
If Aizen knew about his second release, where would he be in the Espada rankings?

Got no proof but I say Aizen knew it Cause this image (chap 396 P19) As he stated in the story, he planned it all.

The answers here are all unsubstantiated fan musings.  Ulquiorra has an official backstory one-shot called Unmasked.  It's been translated, you should try reading it.  It doesn't perfectly answer everything, but then Kubo rarely ever does (which is one reason why unsubstantiated fanon gets created and passed around so easily).

Answer to first question:

A. Just in case.
Ulquiorra’s a pretty careful guy. He likes to make plans. And stick to them. So it’s possible that he hides his second release just because he knows that it’s good to have an ace in the hole, just in case he ever needs it. Not that he’s planning to use it for any nefarious purposes - he just figures, why tell if he didn’t have to?

Ulquiorra: Also, I’m not really a talker.

B. As a tiny act of rebellion.
Or you could read Ulquiorra as more of a Grimmjow-figure. You know, someone may recognize that Aizen is too powerful to actively rebel against, but who needs to do SOMETHING a little rebellious just to stay sane. Grimmjow leaves meetings early and sneaks off to the world of the living; Ulquiorra hides his second release. And this allows them to put up with working for a freakin’ shinigami.

Grimmjow: Um…I’m pretty sure that rebellion doesn’t count if nobody knows about it.
Ulquiorra: And that’s why you get spiritual pressure slammed to the floor, and I don’t.

C. Because he was actively disloyal to Aizen.
It’s possible, though, that this wasn’t a tiny act of rebellion, but rather a big one - that Ulquiorra had some sort of secret plan to rebel against Aizen someday, and he was saving his second release for that time. In which case letting Aizen go off to the WOL with the top three espada was a damn good plan. Ulquiorra would have had the castle to himself if he hadn’t been killed by Ichigo. So close, Ulquiorra.

Ulquiorra: And I was really looking forward to sitting on that throne, too.
Aizen: Yeah, white marble is comfier than you’d think.

Source: "Why does Ulquiorra keep his second release secret?" on bleachlists.tumblr.com

Answer to second question:
I came across an answer while scavenging the net (and I think it's pretty good):

Well..the arrancars sword and the soul reapers swords are the same except for how they are released or how to manifest themselves after they are released. Arrancars have the power of soul reapers and soul reapers swords have 2 different forms shikai (1st form) and then bankai (2nd Form or release state). Now most Arrancars only have 1 sword release thats their resurreccion, resurreccion means resurrection and if u notice all arrancar release states are in spanish for some weird reason, but they only have one b/c arrancars have only been around for only about 1 year or a couple of months b/c they didn't come into existence till azien stole hogyoku out of Rukia's chest. Seeing how they're a new form of hollow but with soul reaper powers they probably have not explored all of their powers unlike soul reapers who have been around for over a 1000 years which means they would know more about their swords and how they operate. So basically the 2nd form Resurreccion segunda, which means 2nd resurrection, is the 2nd form of the sword similar to a soul reapers bankai. So in other words Arrancars haven't been around for a while which is why a lot of them don't know the other form unlike soul reapers who know both forms b/c they've been around forever. Now every arrancar has one but Ulquiorra was just the first to learn it.

Source: "Why does Ulquiorra have two forms?" on Yahoo Answers

Answer for Third one:
Ofcourse Aizen knew.

...[m]aybe Ulquiorra just wanted to know how much Aizen really watched, or how much he could just deduce by being insanely smart. So he kept his release hidden to see if Aizen could figure it out for himself. And like any guy who tests a god, this just didn’t end well for poor Ulquiorra.

Aizen: Is there really any doubt that I knew?

and about the ranking:

Maybe he wanted to stay out of the top 3.
Maybe Ulquiorra just didn’t want to be in the top 3, and knew that with his second release taken into account, he would be. Ulquiorra’s smart - he might have guessed that the people who went with Aizen to Fake Karakura Town wouldn’t be coming back. Or maybe he just really likes the number 4.

Ulquiorra: Actually, I just know how important the number 3 is to Halibel.
Halibel: …
Ulquiorra: Don’t worry, we’re not having a moment.
Halibel: Oh, good!

Source: "Why does Ulquiorra keep his second release secret?" on bleachlists.tumblr.com

Sorry if it's a bit long. :)

Is your answer to the first question taken from another site, e.g. this tumblr post? If so, please edit your post to include a link to the place from where you took it. If I'm mistaken, my apologies.

@senshin Yes i got it from there and i added the link at the end. Thanks! :)

liking number 4 seems quite possible considering that there's a Soul Reaper who loves the number 3 (Yumichika) but because the third seat was taken (By Ikaku) he dumb himself down to Seat 5 because it looked like 3 and also found 4 ugly

I personally don't know why this answer is liked.  It's completely unsubstantiated.  The first part comes from a tumblr post which is literally nothing more than someone trying to come up with every possible angle, regardless of mutual or internal inconsistencies, and then providing no support for any of it.  And the rest is of the same stripe.  There are no chapter references, no quotes of actual dialogue, etc. to make this anything other than someone's headcanon.  I guess that's considered just fine here, but it strikes me as a little odd for a StackExchange site.  -1 from me, anyway.

4 (四) in Japanese can be read as Shi which is the same as the reading for 死 which means death.

Saying he never showed Aizen his second release, does not mean that Aizen did not only know about it, but most likely talked to Ulquiorra about it at some point, we have seen that while at times Aizen can get very arrogant at times, like in his final fight with Ichigo, he is a genius.
He would have figured out that while soul reapers have their skikai and bankai, arrancars would most likely be able to have their own version of bankai, just as their first release is similar to a soul reapers shikai. The way Ulquiorra spoke when he said he never showed Aizen his 2nd release was vague, as he didn't exactly have to show Aizen his power, but he might have told him and made a plan with Aizen to keep it hidden from Gin, Tosen, and the other espada in case they rebelled, much like how Nel regained her power as an espada and starting to fight, and how Grimmjow went against orders to fight Ichigo, except to a more extreme level like a full scale rebellion. Aizen had rarely fought, at first having his espada fight for him.
If most of the espada went into full scale rebellion and if he knew about Ulquiorra's second release before hand, he would be able to send Ulquiorra out to deal with the treasonous espada and end them. It would not be that far fetched, considering the fact that Aizen seemed to hold a special trust in Ulquiorra that he didn't have for the other espada, sending Ulquiorra with Yammy to the world of the living, sending Ulquiorra to get Orihime after letting him trick the treasonous arrancars to steal a fake hogyoku only to get killed in the world of the living, entrusting care of Orihime to Ulquiorra, and lastly ensuring the safety of Los Noches to Ulquiorra.
It's possible that he would have also used Ulquiorra to kill Tosen or Gin if they rebelled, sense Ulquiorra's second resurrection was powerful enough to completely stomp Ichigo when he was using bankai and hollowfication. And as several others have said, it is most likely that Ulquiorra was just the first espada to discover and use the second release, Aizen not revealing to other arrancars, or even just the other espada, that it is possible for them to do this as they all seemed to be more loyal to their fraccion or to more loyal to themselves, unlike Ulquiorra who seemed to not only have no faccion, but never wavered in his loyalty to lord Aizen, you could say that in comparison that Ulquiorra is like the perfect soldier.
Not to mention IF Ulquiorra did aspire to rebel against Aizen and take his place, he most likely could have done so before Aizen was able to finally use the hogyoku. Not only is Ulquiorra already an expert in sonido and extremely fast without any form of release, in his second release he got faster, more agile, stronger. If he truly wished to rebel against Aizen, sense as far as we know Aizen actually never showed the espada his zanpakto, he could have completely blind-sided Aizen when ever he pleased, releasing his second release and using a grand rey cero while in his second release.
If he did this quick enough he would have been able to completely destroy Aizen, as we saw how powerful Grimmjows ceros were when he was just using the standard at point blank range and without his first release, Grimmjow not being as strong as Ulquiorra and with Ulquiorras power being enhanced with the second release, a grand rey cero at point blank range in his second release and if Ulquiorra put everything he has into it, if Ulquiorra was able to do this and blindside Aizen, well Aizen would have had no chance to survive it. And the fact is, Ulquiorra is very intelligent and would most likely realize that if he wanted, he could kill Aizen if he did blind-side him. But he didn't and was trusted with many responsibilities that the other espada weren't.
In conclusion, yes, Aizen more then likely knew about it and talked to Ulquiorra about it, deciding to keep it between themselves, yet would keep Ulquiorra at number 4 sense it would seem strange if the 5th best espada, I say fifth because while Ulquiorra was numbered at 4 the numbering system for espada was 0-9. Even the image above "Aizen-sama has not seen me in this form", the wording meaning that while Aizen has literally not been shown the second release Ulquiorra most likely talked to him about it, its possible that Aizen is even the reason that Ulquiorra got his second release before the other espada and another reason why Ulquiorra could be so loyal to him. Sorry for the very long answer.

He had no motivation to show Aizen his true power, he was never shown to have any aspirations to become stronger or be recognised as the most powerful like some other characters, he always spoke about his and other's strengths as if they were just facts.
He was annoyed because he was so clearly stronger than Ichigo that it seemed stupid to him that Ichigo wouldn't give up, that's why he showed him his second release. He was already absolutely trouncing him in his initial release, it wasn't like Goku going Super Saiyan to defeat Frieza out of necessity, it would have been like Goku then going Super Saiyan 2 and ripping Frieza's limbs off one at a time.
He's the only one with a second release because he's the only one who figured out how to go further, again becoming stronger in your first release is probably completely separate to working out how to go to second release. There's no reason to think it's unique to him, although it is possible, it's more likely that he was just the first to figure it out.
I'd love to say that if Aizen knew about his second release he would have been the top Espada, as to me he seemed the most powerful and the coolest. Considering the ridiculous extent to which he was smashing Ichigo it's hard to believe he wouldn't have been at least above Harribel, who never really did anything overly impressive.
Personally, I think Ulquiorra in his second release was the most powerful thing we've seen so far other than Aizen and Ichigo post-Dangai, but I'm sure many people and probably even the author would disagree with me. The rankings were always a little dubious anyway, again, Harribel was pathetic, and it was absolutely bizarre when Yammy claimed to be the top Espada, and then was killed by Kenpachi and Byakuya, offscreen, without any apparent effort.

He is smart as devil, so he decided not to show his full potential to others (including Aizen)
You cant find it in the anime or manga, but just like Shinigamis only a few with a great potential can release their true power.
Definitely #1. His power, speed and intelligence would definitely placed him above the Starrk and Yammy.

although he is very smart, fast, and powerful, I don't think that he could win the number 2 spot from Barragan. to be honest, I don't even know how Barragan didn't get the number 0 spot from Yammy, considering that he could neutralize all of his attacks. although I am praising Barragan, I really think that Ulquiorra should have been sent to the world of the living, because of the fact that he could use his lightning lance and completely obliterate all four of the pillars within seconds. There is actually a Japanese comic written about Ulquiorra's backstory, and in it, he is actually a natural-born Arrancar just like Stark. With this in consideration, he must have been one of the original Espadas so he would have time to search his powers. The reason he said Aizon doesn't care, in my opinion, is because Uliquiorra's form of death he governs is nihilism. this means not caring about life, so I think that he just doesn't care if Aizon cares so he just doesn't tell him or show him. The reason that he is so loyal to Aizon is that he doesn't care about people or subjects so he is completely fine with stepping out of the way and letting someone take over as long as they are smart and powerful. if Soske was weak then Ulquiorra wouldn't let him take over. Back to his backstory, Soske found Ulquiorra in a big quarts tree in Hueco Mundo (like all other trees but way way bigger) they don't exactly say that Aizon found him there but after Ulquiorra claws his way into the middle of the tree which was tearing off his mask and making him an Arrancar (after recognizing that it was like him in that it was grown from nothingness) he found peace. I assume that Aizon built his palace around the tree making it like a masterpiece or felt his massive spiritual pressure inside of the tree, so he destroyed it. back to the point, when he was sitting inside of the center of that tree he probably started meditating ( like Ichigo in the Dangai ) and learned how he came to be and about himself and his power after this Aizon probably found him and took him out of the tree somehow. if he was in the tree for say 1 year, he would be older then any of the Arrancars, assuming that he was only there for 1 year, when in reality he could be their from anywhere from 50 to 100 years and maybe even more

Welcome to Anime.SE! Right now, this is very hard to read. Would you be able to break this up into paragraphs?

I join F1Krazy request, you need to organise your question.

Ulquiorra is indeed the strongest espada. We all knew how Aizen had everything planned from the start- with the help of hogyoku, he'd transcend into a higher being and when he does, he'd want to test it against someone who had already transcended into a higher being. That being is ichigo kurosaki. But as aizen is already about to trascend into higher being, he had to give ichigo the time to be able to unleash the higher being within him which turns out to be the vasto lorde form then ultimately the final getsuga form. This is the reason why aizen had ulquiorra guard las noches so he could ultimately battle ichigo. Aizen might not have seen ulquiorra's segunda etapa but he must have known that he is far more powerful than number 4 suggests. The proof to this is when Aizen told ichigo "the fact you are here means you have defeated ulquiorra". Now deriving from aizen's judgement that is guided by the hogyoku, i can say that ulquiorra is the strongest among the espada and so strong that he was the one chosen by Aizen to bring out the higher being within ichigo.

Please include sources and/or references to support your answer.

If aizen new about gin's betrayal then I am pretty sure he new about ulqiuorra second release state and the reason why he has that is because he is an arrancar and arrancar are soul reaper/hollow hybrids like the visoreds but in this case arrancar are 60% hollow and 40% soulreaper. And since this is the case ressurccion is similar to a bankai so basically is first release is like shikai and the second works like a bankai. Not only that the espada are closet to a soul reaper than any other arrancar also the 7th espada his ressurccion stated by byakuya is similar to kido

1: Ulquiorra is intelligent. I believe he knew that in the final battle the stronger soul reapers would fight the stronger Espada Arrancars. That is why he didn't want to be higher ranked because then he'd have a lower chance of surviving.
2: Like I said before, Ulquiorra is smart so he is more likely to catch on to a second release/Bankai than others who were lazy or not as smart as Ulquiorra. I also believe Ulquiorra's cold and calculating personality had a part in it, as soul reapers' Zanpakutos are meant to be similar in personalities. If this applies to the Arrancars then his Zanpakuto will be more willing to show him his Bankai.
3: He would be number one, because for soul reapers the difference between Shikai and Bankai is extreme, this will definitely apply to Arrancars as well.

Please include relevant sources/references.

My personal opinion on why he never showed Aizen his true form is because he was being calculated. Remember, he was easily the most calculated Espada member, in my opinion, easily able to match wits with anyone. Thinking that way, he could also match wits with Aizen, given his powers, intelligence, patience and lack of feelings towards others. He and Aizen were a lot alike. He may have had the same thinking that Shinji had: keep your friends close and keep your enemies closer. I believe he kept it as a trump card just in case he and Aizen faced off.


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How did Piccolo meet his bird partner?
After Goku attended his second World Martial Arts Tournament, Krillin been killed.
When Piccolo then appears on screen, he has a partner (a bird) with him on the ship.
How did Piccolo meet him?

I do not know any information about it. Thinking about your question I came to a thesis: Piccolo was the evil family, then chances are met by the simple fact of being evil. Piccolo wanted to dominate the world and turns it into a hell, it is natural that demons to join him. For me this is the best explanation of how the two met.

Piano was the first son of King Piccolo. A Mutated Namek Piccolo created by spitting an egg.


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How is the ability of a Devil Fruit discovered?
Since there is just one Devil Fruit for a specific ability, how does one know about what ability it holds?
For example, Buggy and Teach knew about the powers their Devil Fruits would have provided them.
It is mentioned that they had read about it.
But if the fruit occurs only once till the user dies, how did they find out about the fruits' powers?

There are a number of ways to know the abilities of a Devil's Fruit.

There's a Devil's Fruit book in the Grand Line, which lists several Devil's Fruits. Sanji mentions this book in Chapter 464. Spandam and Teach also make a mention of it.

For Devil's Fruits whose ability is not known before, it can only be found out after actually eating it. In Chapter 385, when Kalifa and Kaku eat unknown Devil's Fruits, Lucci tells them that they will begin to sense the changes in due time.

When a Devil's Fruit user dies, their Devil's Fruit will respawn, and hence its abilities would be known.

In SBS Volume 48, the author Oda Eiichiro promises that a certain professor will eventually appear in the story, and explain what Devil's Fruits really are. We can expect to know more about identification of Devil's Fruits when that happens.

Let's assume that X ate an unknown devil-fruit and after sometime began sensing some changes. How will X know what type of power it is? How will X knows whether he can turn into a lion or a goat or smoke or fire, or knife, for an example?

@R.J The assumption here is that the after eating the devil's fruit, the eater's body will begin sensing changes which will tell him the ability. This understanding gets better over time. For example, if Shanks didn't tell Luffy what fruit he had eaten, Luffy would anyway realise soon that his body has become rubber. For Zoan types, you would pick the instincts and traits of the said animal, say your start running faster like a leopard, and so on. For Logia types, it is not so obvious. Maybe their body just "feels" it, for example, Ace starts feeling hotter or Kuzan feels cold, and so on.

So far, we have only seen people eating the fruits whose power is already known, or they eat the unknown fruit and then come back knowing its powers. The intermediate steps of how exactly they found out has not been shown, most likely because Oda wants to keep it a suspense till that professor appears and explains.

It's simple, the Punk Hazard Arc explains it all. Devil Fruits respawn, otherwise there is no way of telling which fruit has which power without eating it.
For eg :- If you were to eat a banana shaped Devil Fruit and die, the fruit would regenerate into the nearest banana, like the Salamander Devil Fruit regenerated into an apple.
Overtime, people have noted down these fruit types, and that's how they know.


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What happens to Mr 3?
As everyone knows that Mr 3 had helped Luffy to release Ace from the Kairoseki handcuffs by using his wax power.
Once they were free, Luffy catches hold of Mr 3 and they move down towards the ground.

As you can see, the three of them in the pic. But what happened to Mr 3 when Luffy and Ace started getting back to the harbour?
Was he captured or killed?
Have I missed something here?

First, I just want to make clear that Mr. 3's ability is wax and not clay. =)
After freeing Ace, he had been taken by other pirates and was ordered to free Marco as well with his ability (since Marco was also handcuffed by Kairoseki).
After the war, he was seen together with Buggy while reading a letter from World Government.

The letter was Buggy's invitation to be a warlord iirc.


text:
How does Sanji produce fire in Water?
As you know, Sanji has a move called Diable Jamble, where he somehow manages to generate fire on his leg by rotating with great speed.
We have seen this move first when he was fighting CP9.
According to science, fire can be generated by friction, but it should be spontaneous. This explains as to how he was able to generate while he was fighting CP9 at Enies Lobby.
But after the timeskip, when the Straw Hat Pirates were on their way to Fishman Island, they encountered a Kraken. How did Sanji generate fire in water?
In water, there is no rough material via which, fire can be generated.
And even if it is somehow achieved, how can the fire not get extinguished by the water!?

As usual, Oda Eiichiro has a "creative" explanation for that too! Oda blatantly disobeys the Laws of our world in One Piece.
In SBS Volume 44, when asked how Sanji could beat Jabra by heating his leg, without burning it, Oda's response was:

Sanji's leg is not hot!! His heart was burning so much hotter!!

If asked your question, he would probably say something like:

Learning Haki, spending 2 years chased by Okamas, and being separated from ladies, especially Nami-san and Robin-chan, has made his heart burn much hotter!!! Even water cannot extinguish his burning heart!!!

I know, it doesn't feel satisfying, but this is how Oda-sensei's "explanations" usually are!

It's no use trying to think of the OP world in terms of our world. Remember Pappagu, who learned to talk because he thought he was a human, and it was too late, when he realised he was not! Even Luffy questioned how that could work!

Also, we could just blame it on the Haki. :P Luffy's haki makes his body becomes black. We've seen Vergo turn purplish when he uses haki. So may be, Sanji's burning heart and his haki, takes this form.

@R.J As for Luffy's Haki, there's a more "acceptable" reason for the black color. Read my answer here: http://anime.stackexchange.com/a/5717/99. I don't agree with the accepted answer there.

Totally agree with you Happy. Just that, I'm saying that it might be a case, where Sanji's leg turns that color when he uses Haki. It's just a speculation, based on the other Haki colors! :)

Yes, that is totally possible. Oda's imagination knows no bounds, no telling what he might be thinking. :)

Oda's imagination has no bounds, because the information available on this planet has no bounds. He is known to pick up so many things, from names to personalities, from so many various sources, that many things in One Piece world are mere speculations(unless he reveals them).

Im kind of getting what your trying to say. But the haki which is shown is normally for defence, perception and conquerers. So this cannot possibly be haki in the form of fire!
The heat in his heart could heat up sanji, but using that heat he burns his opponent, that is weird O_o

@MärmîkŠhâh - Welcome to Oda's world of One Piece, where you can always expected the totally unexpected things! :)

haha Oda never fails to surprise me!

He is the creator of Luffy after all. What else can you expect? ;)

Well I feel like Sanji uses Haki to incinerate his leg just like Luffy used Haki to use the Red Hawk attack. If you remember Luffy's fight vs Hordy, Luffy uses the Red Hawk attack (which uses Armorment Haki to make his arms catch on fire) under water. Maybe Sanji uses that on his leg to attack. Just a theory.

Any source to proof this? if not I don't think this really answers the question

As we all know, Sanji has acquired Haki and Sky Walk. If Sky Walk (also Blue Walk, but underwater) can serve as a foundation for friction, and Haki as an incinerator, then we get fire underwater. We know that Luffy can generate fire thanks to this logic... Haki and speed.

This is my own theory but his flames could be from the power he was supposed to get at birth. All his siblings had powers but he was considered a dud. If I am wrong he could get powers later on or he might never get them.
Just realized no one has commented in over a year and you guys didn't have this info, that I am basing my theory off of, when it was originally posted.


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Why can't Zoro cut Seastone?
In chapter 402, page 8, Zoro and Usopp got cuffed together with a Seastone cuff, but Zoro didn't cut it, and instead he suggested to cut one of their hands.
At first I thought that maybe it's impossible to cut Seastone, but then I read chapter 677 page 9, where Law can easily cut another person's Seastone cuff (he is the only one that get caught by normal cuff). So why didn't Zoro cut his, was it because he not strong enough?
Zoro

Law

It's because Law is stronger than Zoro grabs popcorn

Let's not forget that Law also had the advantage of being able to utilize his full force. Zoro who only had one arm to use and a fairly bad angle wouldn't be able to use nearly the equivalent amount of force.

You are forgetting the two year gap between those events. Over the 9 mountains and across the 8 oceans, there is nothing Zoro cannot cut. Zoro would now be able to cut it and law wouldn't have been able to cut it two years ago.

@PeterRaeves It's true, but in those two years, Zorro got special training with the strongest swordsman.

@OshinoShinobu Well yes and that's why I believe Zoro can cut it now too. Also remember that Law was probably not able to cut seastone himself two years back, seeing how he couldn't even cut the pacifista, let alone seastone. So they just both got stronger over those two years is my two cents to it.

Kairoseki is as hard as diamond, as stated in Chapter 400 p 11, so it is unlikely for Law to have cut it. However, it is a chain and nobody said that the chain consists just of Kairoseki. It is highly likely that at most every second chain link is effectively Kairoseki, since it is as hard as Diamond, you could barely made it into a chain without any other material and after all it is a rare material.

Law can control everything in his room. He can even extract toxins from someone's blood, so I guess he can also break chains with his mind/power even without actually having to cut them. Law and admiral Fujitora just use their swords for show anyway. They don't really need to cut something to activate their powers as can be seen when he removed his own cuffs or when admiral Fujitora was sending a meteor towards the straw hats while eating noodles.

Any answer to this question would be pure speculation:
If it were that the entire chain is not made of seastone, any rational being would make the cuffs portion of the chains seastone and, therefore, he would not be able to cut the chains off without cutting seastone.  This answer, though already accepted, could be rationally excluded.
Whether it makes sense that his devil fruit power could have been used to cut the chains is dependant on whether non-contact devil fruit abilities can manipulate seastone. I don't believe they can but the way to determine that is to look at smoker.  Can smoker-san turn his entire jutte into smoke?  If he can, then this is how the chains were removed.  If he cannot, he must have done it by his own skill.
If a swordsman (combined with the strength of his sword/swords) is rated by what he is able to cut, Law may have been able to cut the chains by his own strength.  His blade would touch the stones, not him.  The seastone being as hard as diamond does not mean it cannot be broken; hardness is not the same as toughness.  In other placed I would give better examples but for an anime site: the blades used in Attack on Titan are a super hard metal yet fracture/dull easily.  Almost all very hard materials (especially stones and ceramics) have fracture planes between grain boundaries along which the material can be shattered or split with sufficient force. How did you think diamonds are cut?  Why could Law do this and not Zoro? Law at that point in the story was a better swordsman by this rating criteria then Zoro was at the time when he considered cutting his hand (or his leg, or his chest, or throwing himself into a floating paw of pain... what is up with this guy?)
Finally please note that none of these explanations matter.  One Piece is (and I love this) governed by the "rule of awesome" and the "rule of funny". What is possible and what the chains are made of is all what is fun for the audience.  Both referenced scenes were badass and awesome.  Why could Law cut the seastone and Zoro couldn't? Because it was a better show that way!

None of the other answers actually answer the question. OP asked

So why didn't Zoro cut his [seastone cuffs], was it because he not strong enough?

and not

How could Law break the seastone chains?

If it really is just as hard as diamond, then Zoro should be able to cut the seastone. He has cut metal before and clearly stated that diamond wouldn't be any different.
But for this technique, he needs free hands. He has to slice in the right angle, with the right amount of power to do it. The seastone on his arms is simply to close to exercise any technique. But cutting flesh and bone on the other hand, is an relatively easy task with a sharp sword. Besides what some people may think, One Piece doesn't open plot holes for the Rule of Cool.

So why didn't he cut Law's cuffs on Dressrosa arc?


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Where/whom did Madara donate his right eye?

It's mentioned in chapter 602 page 17 that Madara gave away his eye to someone... But it's not mentioned whom. He also says that his eyes aren't his own (he could be referring to his brother's eyes). Most of the Q&A discussions I came across on Google say that it's donated to Nagato! It's mentioned in Wiki too, but I haven't come across any anime episode or manga chapter stating it. Has it ever been mentioned anywhere else, to whom did he donate his eyes (or at least his right eye)?

Would someone show courtesy by writing reason for downvotes? or will it be the least thing I expect? –

It's probably because your question is one big mess. The title asks where he lost his eye, then your question is asking who he donated it to. It is kind of confusing at first sight, but I managed to understand it fine.

Thaks for that ..

Madara did in fact give his eyes to Nagato. (Chapter 606 Page 16 ~)

Is there any link for reference? (I saw it in Wiki but that won't be considered as a proof)

Never mind I found one

I corrected my previous answer as well as posted the picture of proof.

the real question is where did Madara get his new left eye which was a sharingan. he gave both of his rinnegan eyes to Nagato, but which uchiha lost an eye to give him one

In chapter 658, it's said that "Right eye returns to rightful owner". Which proves it was transplanted to nagato. Although doesn't specify when/how.

It's Nagato's eye, which was taken by Obito, from Obito to Madara! The phrase "returned Rightful owner" proves it was it's own eye returned back to him ..

@R.J, you are talking about left eye! His right eye slot was empty. (before death as well as after revival)

@InfantPro'Aravind' Not sure what the confusion is. In my post, it is revealed that both of Madara's real eyes are in Nagato.

actually madara didn't have eyes when he was revived with the rinne tensei, zetsu retrieved his right eye from nagato's corpse and obito still has his left eye, once he dies from using the rinne tensei then black zetsu will bring madara his left eye from obito's body, hope this helps, evidence is from chapter 656 and above the reason he has the rinnegan while he's an edo tensei is because you can be customized almost as when nagato was revived he had both his rinnegan even though obito had taken one, he didn't have either original eyes when he died.   http://www.mangabee.com/Naruto/656/18/

he only had a replacement but for whatever reason he wasnt revived with that eye, hope that helped

Yup, Sort of, U see, Nagato is an Uzumaki, and they are connected to Senju, and Madara has Uchiha blood circulated to his Rinnegan Which he got from implanting Hashirama cells) and then, he gave his right eye (Which had Uchiha blood) to Nagato, who had Senju blood, thus awakening 2 Rinnegans for Nagato and Madara is left with his left Sharingan/Rinnegan. U may be wondering, how does Obito have his right eye, that's because he unconsciously transported the right side of his face to Kamui, then unconsciously got it back, also, Obito's left face is scarred bcz of the amateur eye transplanting by Rin (DUH SHE LIKE 12 YRS OLD)

None of the stuff about Obito is relevant to the question at all.


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How can Madara use Susanoo without any eyes?
Something that I am confused about Madara's powers.
When Madara used the Rinne Tensei to bring himself back to life, he did not have his eyes, but he had the First Hokage's face embedded into himself.
Even though he did not have his Sharingan or Rinnegan, he was able to use Susanoo.
Is there any explanation for these two anomalies?

His both eyes were closed at all times, and he had Rinnegan in both his eyes when he was brought back using Edo Tensei. Since his left eye had been destroyed when he was brought back to life using the Rinne Tensei, it is only natural that his right eye too was destroyed.

@RJ please check update. It is very clear from the two images that he did not have either rinnegan or sharingan when he was reincarnated using rinne tensi

Lol RJ just likes to give people a hard time. Also, I suggest you change the title to something like - How can Madara use Susano without any eyes

@krikara - That's because I don't follow Manga that much. And according to the anime, this is still way beyond comprehension because currently Madara is a re-animated guy, with an indestructible body fully under his control with infinite chakra and Rinnegan in both his eyes. The question became clear only after the images were put, and also, the question as such needs to have a few spoiler blocks. Above everything, I always like to know everything from rock bottom and that is why I preferred the SE community to other forums. :)

@R.J In response to the spoiler block request, it seems as SE has reached a general consensus not to require them. I'm not sure why, but atm there seems to be no distinction from a question pertaining to manga versus the anime. In the end, the user has to read the titled question, and determine whether or not they want to see the entire post with possible spoilers. In the worst case scenario, the title is a spoiler itself lol.

While there isn't an explanation in Naruto for why a person is able to use Susanoo without his MS or Rinnegan, it has been done in the past.
The only logical conclusion is that after someone uses Susanoo, they can use it again without the Mangekyou Sharingan. The manga never explicitly stated that Susanoo required the usage of the MS. Rather it stated that Susanoo is the third technique MS users obtain after Tsukuyomi and Amaterasu.
When incorporating Japanese Mythology into the equation, we can reason that Susanoo does not require any eye techniques (and the below picture was not an accident). This is taken directly from the Susanoo Wikipedia Page:
All three were born from Izanagi, when he washed his face clean of the pollutants of Yomi, the underworld. Amaterasu was born when Izanagi washed out his left eye, Tsukuyomi was born from the washing of the right eye, and Susanoo from the washing of the nose.
Tsukuyomi and Amaterasu comes from the eyes, whereas Susanoo comes from the nose, so one does not need eyes to use Susanoo.
Source: Ch 577
Note: Itachi doesn't have MS activated. In the Chapter 578, Itachi activates MS when he needs to use it. Thus MS isn't required to use Susanoo. Also, when Madara fights the five Kages and has both Rinnegan, he is also able to use Susanoo.

But can this not be a glitch in the plot? Itachi's case can simply be a place where they "forgot" to draw the MS, and Madara's a plot hole?

@debal It is more reasonable to assume it is not a plothole. I'll edit my post shortly with the explanation.

With that said, Madara has been shown to be pretty plot immune in the last few chapters, from senjutsu to taking to no visible damage. Although I do truly believe that his usage of Susanoo is not a plothole however.

A counterargument to this can be seen in Sasukes battle against Kakashi and team 7. While overusing his Mangekyo, Sasukes sharingan looses its light and  his susano completely dissipated. If the mangekyou sharingans are not needed then why does sasuke loose the ability to use susanoo after he goes blind?

It clearly states in the manga and anime that both Mangekyou Sharingan eyes are needed to use Susanoo (where the left and right eye when activated together produce Susanoo). Madara had no eyes at all and used Susanoo (just because he is Madara??). Oh come on that's because they need to cut it out already (stay true to the manga and not this crap).

this should be a comment and not an answer!!!

Please provide references to manga or external sites to acertain your points.


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What's the difference between Tobi's transportation jutsu and the teleportation jutsu used by the Fourth Hokage?
In Naruto Shippuden, Minato Namikaze, the Fourth Hokage, used the teleportation technique (Hiraishin no Jutsu) . Tobi on the other hand uses the transportation technique (Kamui).
How are the transportation jutsu and the teleportation jutsu different since both involve displacing stuff to other locations?

What jutsus are you referring to? There are so many different types of space related techniques XD

You'll need to be more specific than that. Please include Japanese names, full English names or links in your question, to allow us and figuring out exactly what techniques you're referring to. I've put the question on hold until you [edit] to improve it. Good luck, and enjoy the site! :)

@Madara Uchiha: I believed the "naruto" tag would be sufficient. My bad! Is the edit more clear now?

@John: There are many transportation and teleportation techniques in Naruto. I already know you're talking about Naruto, but what techniques in particular? :)

@Madara Uchiha: Well that's something I didn't knew. I thought there were two types only, transportation and teleportation. So I guess I'm interested in the techniques of Tobi and the 4th Hokage in particular.

@John Within transportation and teleportation, there is a plethora of jutsus, not only two. Off the top of my head, I can think of body flicker (high speed movement), thunder god (teleport to mark), kamui, and reverse summoning.

It's clear that he is talking about Minatos Flying Thunder God, and Obitos Kamui. I don't understand what was unclear?

@TechSupport It was only clear after the edits.

I assume you are referring to Obito's Kamui and Minato's Flying Thunder God.
The basics of both Jutsu's is kind of similar. In both the Jutsu, the user can transport himself from one place to another (normally known as teleportation).
Let's begin with Minato's Jutsu. According to Flying Thunder God Technique article on the wiki:

The Flying Thunder God Technique is a technique created by the Second
  Hokage, Tobirama Senju, which allows the user to transport themselves
  to a given marked location instantaneously. To activate this technique,
  the user places a special seal or "technique formula" (術式,
  jutsu-shiki) to mark an intended destination. After this is done, they
  can enter a dimensional void at will that instantaneously transports
  them to the location of the seal.

Now we come to Obito's Jutsu. According to Kamui article on the wiki:

Kamui allows the user to transfer anything to another dimension. Once
  a target is sent to this dimension, it is unable to escape. This
  technique, when used through Obito's right eye, is also able to make
  the user "intangible" by transporting portions of their body to the
  same pocket dimension.

Differences:

Kamui doesn't need any Mark or special seal for it to work.
Kamui can only be performed if the user is using MangeKyou Sharingan,
whereas Flying Thunder God doesn't need Mangekyou Sharingan.
Kamui creates space in different dimensions where the user can
transfer objects or himself and can stay in that dimension for
as much time as the user wants to, but in Minato's technique, the
user is immediately transported to a marked location.


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Can Logia type Devil Fruit users fight each other?
Precisely the question is about fights like:
Portgas D. Ace VS Enel or VS Smoker.
This question isn't about who is stronger, it's rather about how can they fight each other if they meet? How can fire fight electricity or smoke?

I'm still at episode 338 so maybe I'm not aware of some information available in future episodes, but still, I'm getting too curious to wait for the episodes to reveal that for me.

all they need is haki! :P

Besides using Haki, some elements seem weak or inferior to other elements, as shown when Ace fought against Smoker and when Ace fought against Akainu.
When Ace fought against Smoker

When Ace fought against Akainu

This fact is also mentioned on One Piece Wikia:

A Devil Fruit user who normally dominates all other powers can sometimes be brought down by a power considered "weak" in comparison; one such example is the Gomu Gomu no Mi unexpectedly withstanding the Goro Goro no Mi's powers, the Doru Doru no Mi unexpectedly holding back the Doku Doku no Mi's powers and Akainu's Magu Magu no Mi dealing a fatal blow to Ace despite his Mera Mera no Mi due to an order of superiority. Another surprise also came when the Mera Mera no Mi clashed against the Moku Moku no Mi, equalizing with each other, and then later against the Hie Hie no Mi with the same results.

The accepted answer describes well the effects of haki and the difference in power between some DF, but there are other ways :

use a weapon with kairoseki (sea stone) in order to neutralise the opponent logia ;
use material which is strong against your opponent logia, e.g. against Eneru you can prepare lots of rubber and use it to your advantage. This require careful planning of course ;
destroy the boat your opponent is using from far away with your biggest attack, hopefully while he is asleep. By the time he wakes up, you will hopefully be far away enough and he won't be able to survive in the sea.


text:
Why was the Shinobi War started?
Why was the Shinobi War started if

 Kyuubi chakra was all that was needed? Without Naruto (Kyuubi) and Killer B (Hachibi) being captured, the eternal genjutsu (Moon Eye) was initiated by Tobi/Madara. The reason being they could do it, is because they had one of Hachibi's tentacles (courtesy: Sasuke) and Kyuubi's chakra (Gold and Silver brothers). So which means all they needed was a sample of Kyuubi chakra (since all 7 Tailed Beasts were sealed, it was powerful enough to begin Moon Eye, also they had Hachibi's tentacle). Why did Tobi initiate the war if he could have collected Kyuubi chakra somehow? If Tobi knew about it earlier, could the war have been avoided?

His ambition could have been achieved without any war.

The aim was to revive the Ten-Tails in its prime and that is why they wanted to seal both Kyuubi and Gyuuki completely too. But after the Edo Tensei was released by Itachi, Obito lost all the revived Jinchuuriki's of the other 7 tailed beasts. Though he had them sealed, he couldn't use them in the battle anymore and facing both Naruto and Killer B alone would have been difficult for him.
Thus he decided to revive the Ten-Tails with just the 7 beasts and the little chakra samples of Kyuubi and Gyuuki he already had(sealed Kinkaku, Ginkaku and a piece of the tail of Gyuuki) so that he could become its Jinchuuriki and complete the Eye of the Moon plan.
Here is a sequence of images from the Manga, which will help you understand the whole thing better. Most of it is from the Manga Episode 594, and is finally out in the anime too, Naruto Shippuden Episode 341.

while i feel that the answer is an appropriate one, adding refereneces to manga chapter and/or images or other external reliable sources could make the answer much better. :)

@debal - Done! :)

@R.J, while I feel the answer is perfect now, adding manga images will make it a spoiler .. rather please provide a link to those images (specifying it would lead to spoiler). Also please use >! to apply spoilerproof on corresponding statements..

Thanks for the nice and clear answer.. I will accept it after I'm allowed to..

@InfantPro'Aravind' - The last episode of Anime showed Obito performing the seal-type action for revival of Ten-Tails. So the text looks fine, but I guess the Manga images would be a spoiler. The problem here is, within 4 weeks, all this is gonna come on anime anyways. Anyways, will keep the relevant stuff and make the other stuffs as spoiler proof.

@InfantPro'Aravind' - Whenever this episode is aired in the anime, I just need to add a few exclamation marks, and that's enough to make the answer like before! :)

@R.J, Appreciated.. The reason is, anime.Stackexchange is very strict about spoiler-proofing, I didn't want your answer get downvotes because of that.. Moreover, it would take more time than expected for anime makers to telecast these.. you see they just love fillers ;)

@InfantPro'Aravind' - Magically, the anime guys took pity on us and released it this week! :) Episode 341 was worth the watch.

hahaha :D cheers for that ..


text:
Will a Devil Fruit user swim if he/she is in contact with Kairoseki?
We know that Kairoseki nullifies the Devil Fruit powers and sea immobilizes the Devil Fruit users. So hypothetically, what will happen if a Devil Fruit user tries to swim while he/she is in contact with Kairoseki?

Why the '-1'? I don't know it, and just asking if anyone out there knows. Is it that bad of a question that it gets down voted in minutes.

I didn't -1, but I also don't understand your question. Why wouldn't they drown? It seems pretty obvious to me that they would unless I'm missing something.

@LoganM Well kairoseki completely nullifies the devil fruit aspect of a user, then shouldn't the drowning curse be nullified too. Its just a thought that's why I am asking whether someone knows about it??

@AbhilashK Two negatives don't make a positive (in this case). See this question for an more indepth explaination of what Kairoseki is. Exposing a Devil Fruit user is alike exposing them to the see, putting them in the ocean has no added effect.

@Krazer I gave one of those 3 answers. It is stated that they don't have same wavelengths; only similar, thus the effects would be different, kairoseki negates the power and sea immobilizes them. However nothing is mentioned about their combination.

@Krazer As for the kairoseki, it only works after direct contact with the user him/herself, not with the object they created, or effect they are causing.

@AbhilashK If you have a set of cuffs that makes your whole body a cold as if it was in a blizzard and you put them inside a blizzard, they'd still be a cold  if they were in a blizzard.

@Krazer I don't understand the metaphor and the meaning you are trying to say, sorry but please explain. :(

@AbhilashK It's an analogy. If I have an item that simulates being in  situation (e.g, freezing in a blizzard) and put myself in the actual situation as the effect from the item, I'd still be freezing in a blizzard.

let us continue this discussion in chat

@Krazer But what if another item removes the effect of freezing altogether, then being in a blizzard should have no effect.

@AbhilashK - Have a look at my answer for the original question which made you ask this question. The effects of Kairoseki and Sea are almost the same. There is not enough evidence to prove that they affect a DF user different, thus, answering this question as, No, they can't swim in water even if they are in direct contact with Kairoseki.

They can't. The Sea Stone drains the Devil Fruit user's body of energy rendering them unable to move (as if they were paralyzed), and negates their Devil Fruit powers (but not the cursed side effects). This is the same effect as if they were exposed to the ocean. Since they can't move or breathe underwater without special assistance, they will ultimately drown.


text:
Why is Sanji's Wanted Poster drawn?
Unlike any other characters, only Sanji's poster are drawn.

In chapter 436, they ask the photographer, but there's no reply (or at least the answer didn't revealed after).

Did he really forget to take off the lens cap?
How could he forget to take off the lens cap, if he managed to get another picture of the rest Luffy's crew?

for now, the only revealed reason is that the lens cap wasn't removed.
If there really is any other reason, then it'll be revealed in future.
But i personally don't feel there could be any other reason. Echiiro might have just made this for some funny moments!

If I were to guess, I'd say that there were different photographers, and the one who was supposed to take Sanji's image made the mistake. Some bounty posters were taken during the raid on Enies Lobby (notice the posters of Sogeking, Robin and Franky).

But Sanji was not there to begin with (busy closing the Gates of Justice), Nami was shocking everyone with her Perfect Clima Tact who got closed to her and Chopper was temporarily paralyzed on the ship. Hence only Sanji, Chopper and Nami were left for the bounty photos, Nami's photo was then taken by a magazine reporter (who may or may not be at the party, but can't go to Sanji or Chopper with that excuse), Chopper's photo was definitely taken at the party (notice his expression), however Sanji was busy with keeping up with the food demands during the massive party (can't have a cook's image on the bounty poster).

As for how nothing is mentioned. I would say he was nervous and made an honest mistake.

Because when the photographer took the picture, the lense was still covering the camera and it came out blurry, so they used a substitute, which was duval's picture.

it wasn't blurry. it was black.

and also it's completely drawing, and not Duval's picture

Actually, according to the anime version in episode 389, the guy in the wanted poster is a real guy. The photographer thought Duval was Sanji.

The photographer did not think Duval was Sanji, it just so happened that a portrait of Sanji happened to be an exact match with Duval. It was unintentional and a complete coincidence.


text:
How could the Marines catch Zoro?
The first time Luffy met Zoro, Zoro got caught by the Marines because he killed Helmeppo's pet wolf.

He was already strong at that time, he could easily defeat Morgan, a Marine Captain there. Had he deliberately made himself get caught? Why did he do that?

I think nothing is mentioned in the manga about this. According to the anime (second episode), Zoro was blackmailed by Helmeppo to surrender for 1 month otherwise he will ask his father to execute the family. Zoro agrees on the condition that the family will not be harmed.

He deliberately got caught in order to save the little girl who was threatened by Helmeppo with a gun.

Where in the manga or anime was this explained?

In anime second episode.


text:
How can Digimon come into real world?
As we know, Digimons are digital monsters made of Data in the Computer.
So in Digimon Adventure 01 and 02, all the Digimons come to the real world for a mission. But if they are just a piece of data, then how can they actually come out of the computer and take form?
Data needs a medium to compile and take form and the real world does not provide that medium, it only happens in devices that understand the data.

lol it is a premonition of what the future holds

Data in the Digimon universe is not the same as data in the real world. It's revealed (for sure in DA02, I don't remember where else) that Digimon actually have souls, and this is a result of the Digital World and the real world actually be directly connected. I'll try to get a more solid and complete answer when I have time, if no one else has by then.

I remember in Digimon Adventure 2 there being a gate between the Digital World and the Real World which has a "corridor" where anything is possible.
BlackWarGreymon sacrificed himself to protect the Gate which when Mytoismon tried to break though it from the Real World ended up getting trapped in this corridor because of the seal BlackWarGreymon made, this is were we see the Digidestined able to have their partners assume every evolution form at the same time, as the battle continued Mytoismon was pushed back into the Digital World and the multiple forms disappear when they enter the Digital World probably because of Data Limits in the Digital World.
I would assume all travel between the 2 worlds is done though this Gate and "corridor" where the "corridor" is used to make digimon real and turn people into data and some objects into digimon (as seen in Frontier with the trains), the Gate itself probably doesn't have a fixed point.

Hmm.. this isn't so solid. But i think it pretty much gives an idea of what actually is happening!
Thanks though :)

It is explained in Digimon Tamers:
When a digimon materializes in the real world, it creates protein and other components from the air and nearby matter (exactly how, if it involves nuclear fusion or not, is unclear) to create a body using energy and data from the digital world.
The same is true when humans travel to the digital world. Their bodies are converted to digital "energy" and this energy is recombined into real bodies. As seen in s2, the clothing can be changed by the mindset of the children.
There is some effort to cross to and from, so usually digimon and children only use gates, places where the boundaries are thinner. Only special digimon like Grani can freely move to and from the digial world.

Well there is no telling for sure how they can because in Digimon Adventures or Digital Monsters season 2, there is a gate to enter into the digital world and back. And in Digimon Tamers, the Digimon monster that you see Growlmon fight with comes through a vortex somehow, so they probably have many ways. But we will never know for sure if Digimon are real so we do not know if they can come or not.


text:
Are Kurenai's eyes some sort of Doujutsu?
Since the start of the series, after the Sharingan and Byakugan had been revealed, Kurenai's eyes seem kind of different from normal eyes and more like the Doujutsu.

During the attack of the Nine-Tailed Fox on Konoha, her father appeared for the first time in the story. He too possessed similar patterns in his eyes.
So is it some kind of Doujutsu, do her eyes have special abilities similar to the Sharingan or Byakugan, etc.?

I always thought there were that way to make her unique/gorgeous :P

Actually they are not ke-ke-genkai. In this wiki at the latter part said that:

Although her eyes are very distinct, they are not a dōjutsu.

Dōjutsu (瞳術; English TV "Visual Jutsu"; Literally meaning "Eye Techniques") are genetic ninja abilities that utilise the eyes, granting the wielder ocular abilities. Being a by-product of specific kekkei genkai, dōjutsu are not classified as one of the major jutsu types.

I have edited my original question and replaced kekei genkai with Dōjutsu. However the question remains still unanswered. Does her eye have special abilities like those of sharingan or byakugan?

Actually the answer still no. They don't have any special ability.

I like to think it's a form of doūjutsu that is very very weak and I only enhances the users genjutsu skills from 100% to 110%. Kurunai and her father are both very skilled genjutsu specialists so it would make a little sense.

This question was asked and answered already. Adding new answers to answered questions is not good practice. Your statement would be better off as a comment.

They are not related to sharingan in any way. The are simply because of their genes. Like we have green eyes , brown eyes and stuff. There never has been any canonical opinion about it in anime or in manga. Even so, the manga is coming to an end and still there is no hint of having any powers or any affiliation with the sharingan.
P.S: I mistakenly posted my view on a question labelled duplicate.


text:
Why did Naruto and Sasuke hit Tobi with Rasenshuriken directly?
When Naruto first mastered Rasenshuriken and used it against Kakuzu, his arm was also injured due to multiple wind blades that also damage the user and had to recover for a while.
But in a recent chapter, combined with Sasuke's Amaterasu, both of them were holding the Rasenshuriken and they hit Tobi without throwing it. So how come it seems like they did not take any damage when they hit Tobi without throwing it?

can you provide some images nix? :)

The first time Naruto was shown using the Rasenshuriken, it was during the fight with Kakuzu. At the time, Naruto had not mastered the Rasen Shuriken completely. He had to hit the target in point blank range. Since he was in the blast range of the jutsu he was heavily impacted by the corrosive power of the jutsu.
But during his training in Mount Myoboku he mastered the Rasen Shuriken in a secretive manner, enabling him to throw the Rasen Shuriken over a distance. This allowed Naruto to stay off the blast range and also control the area covered by the blast from the Rasen Shuriken. But, even in his Sage mode, Naruto could use only two Rasen Shurikens, but he no longer sustained damage from his own jutsu.
Later, when he took control of the Kyuubi he had access to a huge amount of chakra previously unavailable to him, giving him the capability to use Rasen Shurikens more than two times.
Sasuke's Amaterasu is a fire technique, and Naruto's Rasenshuriken is a Wind technique, it is known that wind techniques increase the effectiveness of a fire technique. Thus Naruto and Sasuke combined their jutsus to make a far powerful jutsu. And since both of them were out of the blast radius, none of them were hurt from it.

Image taken from Manga chapter 634.
Regarding the recent usage of the combination of Rasenshuriken and Amaterasu, I can only assume as to why it did not affect Naruto and Sasuke. The second hokage swapped Minato and Obito just before the attack landed, so similarly with the same jutsu he may redirect the aftershock of the attack away from Naruto and Sasuke.
The second possibility is, since Naruto can himself control the area of effect of the Rasen Shuriken, as we have seen him perform earlier (mainly during the fight with Pain where he increases the area covered by the rasen shuriken as Pain was escaping). Due to which he himself may be able to minimize the are of impact of the jutsu and concentrate it only on Obito thereby saving both sasuke and himself.

How can you say that they are not in the blast radius? Naruto has to throw it to get out of the radius, but in their case, they did not?

@debal Naruto did not throw his Rasen Shuriken at Obito. In the image the OP put in the question that is clearly visible. The only thing that could've put them outside of the blast radius is the fact that Obito was propelled away from them when they hit him with that jutsu.

@debal The second paragraph you edited in seems more likely. If you look at the last page from the chapter, you'll notice that Minato is also far from Sasuke and Naruto. That would mean that the Second did not switch them back.

yes indeed, but the marks on Obito still remains, thereby giving the second an opening to redirect the after shock

@debal I think i can agree with the second possibility you mentioned. =)

It seems like when he used it against Kakuzu, it exploded while he was still holding on to it, almost right after contact. It sent Kakuzu flying, but naruto was still right there at the time. Throwing it means when it explodes, its out of range . Though it also appears that after he got access to Kyubbi mode, he had already mastered it and could make it not explode until after he let go of it (he is also faster so easier to get away). Perhaps it was a stability issue, it became unstable when it comes into contact with things and explodes, but mastery allows him to keep it stable after contact

By combining Naruto's wind nature and Sasuke's Amaterasu the wind fans the fire greatly increasing its power. Accepting that the rasen attack at this point is ACTUALLY a main fire base with wind fanning it's power we can assume it combines Sasuke's effects with Naruto's. This means that although the field increases because Amaterasu is a fire based attack they would have had to be physically touching it to affect them, if you look at the picture and all of Naruto's rasen moves he actually is hold a chakra ball above his hand, this means we can infer that because Sasuke's element becomes the main ability while Naruto's ability form is used they wouldn't necessarily be damaged by the attack, also if it can be focused further by Saskue's greater form control (Chidori training while with Orochimaru), they would probably do a focused blast at a guess.
BTW this is backed up by Naruto's first on screen success of rasenshuriken when he combines it with Yamatos water style to block an attack and neither of them are harmed

My immediate response would be to show-off the Minato-Tobirama combo space-time ninjutsu looking epic awesome along with a Naruto-Sasuke S rank ninjutsu all in same chapter.
But a more logical explanation, from my perspective, would be to overcome the chance of Obito easily dodging a projectile attack, and the fact that the combination of Rasenshuriken and Amaterasu would require more granular control of both elements, which would require them to sustain control only possible in a close range until they hit their target.

The answer is simple. Naruto in the Kyuubi mode recovers faster than normal. On the other hand, Sasuke's Amaterasu is Blaze (enhanced fire) element jutsu while Naruto's Rasenshuriken is Wind. Combining those two element can form more powerful jutsu.

Well, theoretically, this kind of jutsus are hard to control thus they have to hold them and form a melee attack. Remember what Sasuke said that he will adjust his chakra to Naruto just to have the right combination of the two jutsu. Take note that this is the first time they use that kind of combo-jutsu.
UPDATE
According to the wiki, Naruto can throw fuuton rasen shuriken when he is in Sage Mode.

I dont think even with in kyuubi mode that Naruto can recover in an instant. I know the jutsu is stronger combined with fire element, with that case, won't it make the damage to user worse too?

The damage to the user is irrelevant since they are both in Kyubi mode(Naruto) and with Susanoo(Sasuke). What really matters is how they will control those two jutsu at a very short period of time.

But it shows that Sasuke did not activate his Susanoo?

@NixR.Eyes Sasuke used his susano's bow to shoot the arrow of amaterasu. Check the chapter 634 once again. You will get your answers

@debal I'm talking about the recent chapter where both of them attacked Tobi, not from the previous chapter where their target is the Juubi.

@NixR.Eyes my bad.. i will have a look at it once again and see if I can figure out something.. :)

When Tsunade described the affects of the Rasen Shuriken, it was said that in the end naruto COULD recover from the nanocuts he recieves via the kyuubi, but it would shorten his lifespan. As people have said before, as a results he's learned ways to avoid being in the blast radius of the move.
This doesn't mean, though, that Naruto would never again use the move in short distances. If anything, he was using the RS because he wanted to be Tobi via any means he had at his disposal. If it meant shortening his life span, so be it. The situation was certainly a justifiable one.
So IF the people above me are wrong about Naruto somehow avoiding the blast radius and the effects of the RS in this situation, he would probably have used it anyway and took the hit to his life span. Even Sakura and Tsunade herself uses moves that take a significant toll in longevity in situations that called for such a maneuver.

The actual reason why Naruto was not allowed to use Rasen shuriken is because it causes damage to the user of the jutsu even though it is not as severe as the damage caused to the target. Naruto's hands with which he used the Rasen shuriken got badly damaged, remember.
But when in Sage mode or when enveloped in Kurama's chakra, remember Naruto takes very less damage. That's why Naruto could actually use it in his sage/bijuu mode.
Also, when the Rasen Shuriken is combined with Amaterasu, we can see that the combo attack does not actually explode like Rasenshuriken. That is there are some differences in the method in which the damage is caused.
In the combo, the rasenshuriken just increases the strength of the Amaterasu. It doesn't make the characteristic damage of a Rasenshuriken. The damage is done by the Amaterasu. So sasuke was also able to hold it and hit the target.

I doubt that in the sage mode Naruto takes very less damage. In sage mode his reflexes increases and so does in Bijuu mode.

Remember what Pa of Nidaisengama told to naruto during his training in Mount Myōboku. In sage mode naruto takes only very less damage. And that is the reason why naruto secretly went out at night to practice with RasenShuriken(thats what i think he was doing after slipping away at night). Yes his reflexes increase in sage mode as well as in Bijuu mode but his defensive capabilities increse as well.


text:
Whose eyes did Uchiha Madara use during the ninja war?
I knew that Madara possesses the eyes of his brother to obtain Eternal Mangekyō Sharingan but is he still using those eyes during the Fourth Ninja World War? Or has he implanted different eyes?

Yes, he is still using Izuna's eyes.
Those are the eyes with which he invoked the Eternal Mangekyo Sharingan and the Rinnegan.