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|Guppy||Beelzebub||Super Bum||Yes Mother?||Bob||Fun Guy||Leviathan|| Conjoined |
|Spun||Seraphim||Oh Crap||Bookworm||Spider Baby||Adult||Stompy|
Isaac turns into his cat Guppy after picking up any three distinct items in the following list. In this form, Isaac gains flight and will spawn one blue fly every time an enemy is hit with a tear. Flies do not spawn when dealing damage without tears (except BrimstoneTears are replaced by a laser beam that pierces through all enemies and obstacles in its path and deals high damage. Can only be fired after a short charge-up period.), such as with Mom's KnifeIsaac's tears are replaced by a knife that pierces enemies, can travel through obstacles, and can hurt enemies while Isaac is holding it. Holding down the fire button before firing increases its range and power. or Epic FetusIsaac's tears are replaced with guided missiles, like those used by the Doctor's Remote..
Activated Collectibles[edit | edit source]
|Guppy's Head||145||Reusable fly hive||Spawns 2-4 blue flies to damage enemies.|
|Guppy's Paw||133||Soul converter||Removes one red heart container in exchange for gaining 3 Soul Hearts.|
Passive Collectibles[edit | edit source]
|Dead Cat||81||9 lives||Sets the amount of red heart containers to 1, but gives Isaac 9 extra lives. After dying, Isaac is teleported to the last safe room. New heart containers can be obtained after picking up this item, but after each death, the number of heart containers is set to 1 again.|
|Guppy's Collar||212||Eternal Life?||Grants Isaac a permanent 50% chance to respawn with 1/2 of a red heart after death.|
|Guppy's Tail||134||Cursed?||Increases chance of finding gold chests and normal chests, but reduces chance of finding pickups.|
|Guppy's Hair Ball||187||Swing it||Loosely follows behind Isaac. Can be swung like a flail by rapidly spinning Isaac in a circle. Grows bigger by killing enemies.|
Unlockable Achievements[edit | edit source]
Trivia[edit | edit source]
- The transformation is a reference to Edmund's first cat, as seen in some of his early videos on his personal channel: https://www.youtube.com/watch?v=trUCcvtN1lA .
Seeds [edit | edit source]
XWN6 1YWH (Basement I - Curse Room above spawn contains 2 Red Chests and Stone Chest, Guppy's Collar, Guppy's Head and Dead Cat respectively)
7TC3 43F1 (Cellar I - Curse Room above spawn contains 2 Red Chests and Stone Chest, Guppy's Collar, Guppy's Paw and Guppy's Head respectively
|The Binding of Isaac: Rebirth|
|Achievements||Attributes||Bosses||Cards and Runes||Challenges||Chapters|