

I'm looking for an old anime which I watched when I was young, during the 90s.
As far as I can remember:

  * The earth is flat in the story
  * The storyline is about this protagonist trying to save the world by killing monsters by transforming into different mecha? 
  * The protagonist transform by inserting a disk (?) into a device on his hand
  * At the end of the first arc, the world isn't restored, and the protagonist had to return all the disks he collected to their original place
  * Each time a disk is returned, one of the bad dudes will turn back to normal
  * To make things clearer, it is the protagonist himself transforming


CC BY-SA 3.0
2013-05-19T05:28:22.450
3834
2014-01-28T01:50:39.363
2013-05-19T12:23:23.570
1800
1800
question
identification-request
Protagonist saves the world by killing monsters by transforming into different mecha using disks


A few potential options, some of these are a shot in the dark hoping some of
your information is mixed up:

  * _Monster Rancher_ \- Monsters were born from disks and used to battle other monsters. Not a mecha anime and came out in 1999. Protagonist doesn't transform _most_ of the time.
  * _Saint Seiya_ \- Has transforming protagonists that look mecha-like. I don't recall any disks though, it came out in the late 80s.
  * _Escaflowne_ \- Came out in the 90s, mecha like.

It could also be some flavor of _Digimon_ , _Gundam_ , etc.

Very few Mecha anime that weren't _Gundam_ or _Macross_ came out in the 90s
that I'm aware of; but [here is a
list](http://myanimelist.net/anime.php?q=&type=0&score=0&status=0&tag=mecha&p=0&r=0&sm=0&sd=0&sy=1985&em=0&ed=0&ey=2000&c%5b%5d=a&c%5b%5d=b&c%5b%5d=c&gx=0).


CC BY-SA 3.0
2013-06-06T21:21:54.770
4059
2013-06-07T00:55:45.110
2013-06-07T00:55:45.110
274
1870
3834
answer


i think that you are looking for [Gulliver
Boy](http://en.wikipedia.org/wiki/Gulliver_Boy):

![Gulliver Boy](https://i.stack.imgur.com/Eq6hDm.jpg)

It matches your specifications.


CC BY-SA 3.0
2014-01-27T21:48:56.150
7182
2014-01-28T01:50:39.363
2014-01-28T01:50:39.363
274
3504
3834
answer