Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
This article refers to the remake.
- For other uses, see Monstro (disambiguation).
Lil Monstro is a passive/familiar item that will be added to the upcoming Afterbirth † DLC for The Binding of Isaac: Rebirth. He is a smaller version of the boss Monstro.