Guppy's Hair Ball

Guppy's Hair Ball is an unlockable passive item.

Effects

 * Spawns a hair ball that loosely follows behind Isaac and can be swung like a flail, dealing contact damage to enemies and blocking projectiles.
 * The ball grows bigger by killing enemies, which increases its damage.
 * Killing the flies that Hush spawns does not increase its size.
 * The size of the ball resets upon entering a new floor.

Trivia

 * This item is used in Challenge #8 (Cat Got Your Tongue).
 * The function and flavor text of this item might be a reference to the idioms "no room to swing a cat" or "can't swing a dead cat without hitting...".