Guppy's Hair Ball

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Removed in Afterbirth †Item icon
Added in Afterbirth †Item icon
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Added in Afterbirth(page 2, column 4, row 4)
Removed in Afterbirth(page 2, column 4, row 9)
Guppy's Hairball Become Guppy

Guppy's Hair Ball is an unlockable passive item.

Effects[edit | edit source]

  • Spawns a hairball that loosely follows behind Isaac, blocks projectiles, and can be swung like a flail to damage enemies.
    • The ball deals 5 damage per tick, but grows for +2 damage when it kills an enemy — up to 5 times for a maximum of 13 damage. The damage it deals per tick (each half-second) is (level × 2) + 3.
    • The hairball level decreases upon entering a new floor: if level 2, it reverts to level 1. If level 3 or 4, it reverts to level 2. If level 5, it reverts to level 3.
  • This item belongs to the Guppy set. Collecting three items from this set will transform Isaac into Guppy.

Notes[edit | edit source]

  • The hairball's hitbox is the same size regardless of level.
  • Added in Afterbirth / Removed in Afterbirth † Killing the Blue Flies that Hush spawns does not increase its level.
  • Removed in Afterbirth † If Isaac has transformed into Guppy, Guppy's Hair Ball spawns Blue Flies when it deals damage.

In-game Footage[edit | edit source]

Trivia[edit | edit source]

  • This item is used in Cat Got Your Tongue (challenge #8).
  • The function and flavor text of this item might reference the idioms "no room to swing a cat" and "can't swing a dead cat without hitting...".
  • In the original The Binding of Isaac, Guppy's Hairball did not count towards the Guppy transformation.

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