Why Obito suddenly became so puffy?

[Hatsumomo]

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[sasukexx13]

he's gonna explode

 

[ShinraRengan]

HE doesn't have full control over the Juubi, and if memory serves right,aren't we not allowed to link other sites here?

 

[ObitoGokuKakashi]

Juubi farted in him ...

 

[Parrish]

The chapter gave you the answer. lol

 

[NagatoSolos]

He hasn't taken the full control of the ten tails .

 

[DimLord Urza]

Bulbasaur (jubbi) evolved into Jigglypuff (Fat Juubito)

 

[Henrik]

Maybe read the chapter?

 

[ChiefHermit]

obito has to fart so hard man

 

[The Paradox]

Because Obito is Greed.

 

[Prime Rib]

he has not took full controll of teh 10 tails