IBS is an unlockable passive item in The Binding of Isaac, added in the Repentance DLC.

After dealing enough damage to enemies, Isaac begins to flash red. Once this happens, releasing the fire button activates one of Tainted ???'s unique poop abilities.

IBS cannot activate if Isaac is currently holding a poop.

This page shows information as of the latest Repentance release.
To see latest up-to date information about this item for the new Repentance+ (Online Co-op) DLC, check this page instead.

Defeat Delirium as Tainted ???.

IBS can be found in the following item pools:

The following tags are applied to this item:

• Check out the item description on the external Isaac Wiki.