Transformations

Transformations

Guppy	Beelzebub	Super Bum	Yes Mother?	Bob	Fun Guy	Leviathan	Conjoined
Spun	Seraphim	Oh Crap	Bookworm	Spider Baby	Adult	Stompy

Transformations alter Isaac's appearance and grant him special abilities.

A Transformation occurs when obtaining at least three collectibles from a particular set of items.
These collectibles always share a particular theme that corresponds with the transformation.

AFTERBIRTH PLUS- DO NOT KNOW HOW TO FORMAT CORRECTLY

(THERE IS A NEW TRANSFORMATION CALLED BOOK-WORM)

Transformation sets

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Notes

• Activated items (e.g. Guppy's Head) only need to be touched in order to count. Keeping them, or even activating them once, is not required.
• Rerolling items with a Dice Room, the D4, or the D100 will not remove progress towards the transformation.
• Transformations can be combined with each other, keeping the effects of any and all transformations with no effects overriding others.
• Transforming into Beelzebub for the first time will unlock the Lord of the Flies achievement.
• Since none of the Afterbirth transformations unlock an achievement or item, attaining them is not required for 100% completion of the game in terms of achievements.
• Many of the Afterbirth transformations override the charge animations of items such as Monstro's Lung and Brimstone, potentially making them more difficult to use.
• Familiars gained from Cambion Conception or Immaculate Conception do not count towards transformation progress.

Trivia

• There are two transformations in the base game and nine more in the Afterbirth DLC.
• In the original The Binding of Isaac flash game, the transformation into Guppy was the only one available, making it chronologically the first.
• Rebirth introduced Beelzebub as the chronologically second transformation.

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