Binding of Isaac: Rebirth Wiki

(in Repentance)

Gasbags are a unique enemy type found only in CorpseCorpse. While they are alive, they emit a ring of toxic gas that deals damage to Isaac if he stands in it for too long. Additionally, Gasbags will occasionally spawn a chain of 4 Army FlyArmy Flies to chase Isaac. Gasbags will only spawn flies if there are less than 8 army flies in the room, no matter how many Gasbags there are. The Gasbag's toxic cloud disappears a short time after it dies.

Trivia[ | ]

  • The Gasbag first appeared in the Antibirth mod where it acted identical but could not spawn flies.