How was Akatsuki members able to replace their bodies?


In Naruto Shippuuden Episode 16,I came across the scene where Akatsuki members
were controlled with in another bodies.What kind of jutsu is
that?![Yurra_wearing_akatsuki clothes](https://i.stack.imgur.com/NlQ2j.jpg)




I assume you are looking for this.  
It is called as the Shapeshifting technique used by pain.  
According to the Wiki:-  

> This technique allows Pain to allocate a portion of an individual's chakra
> and transfers it into a living human sacrifice, allowing the original to
> fight via an elaborate "copy". The appearance of the person on whom the
> Shapeshifting Technique is performed is completely identical to the original
> person. The technique will imitate any weapons, tools or kekkei genkai held
> by the original person, allowing the copy to fight with them. The power of
> the copy is in proportion to the volume of allocated chakra, which is
> decided by Pain.

If you want some more info then you can check [Kazekage Rescue
Arc](http://naruto.wikia.com/wiki/Itachi_Uchiha) on this page and some more
about the [jutsu](http://naruto.wikia.com/wiki/Shapeshifting_Technique).




I assume you are looking for this.  
It is called as the Shapeshifting technique used by pain.  
According to the Wiki:-  

> This technique allows Pain to allocate a portion of an individual's chakra
> and transfers it into a living human sacrifice, allowing the original to
> fight via an elaborate "copy". The appearance of the person on whom the
> Shapeshifting Technique is performed is completely identical to the original
> person. The technique will imitate any weapons, tools or kekkei genkai held
> by the original person, allowing the copy to fight with them. The power of
> the copy is in proportion to the volume of allocated chakra, which is
> decided by Pain.

If you want some more info then you can check [Kazekage Rescue
Arc](http://naruto.wikia.com/wiki/Itachi_Uchiha) on this page and some more
about the [jutsu](http://naruto.wikia.com/wiki/Shapeshifting_Technique).

