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Fun Guy

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For other uses, see Mushroom (disambiguation).

Keeper sprite

Mushroom Transformation
Fun Guy is a transformation added in the Afterbirth DLC for The Binding of Isaac: Rebirth.


Turns Isaac into a walking mushroom and gives him a heart container.


Isaac must collect at least three of the following to transform.


  • Fun Guys is probably a play on words of Fungi.

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