Boom! is a passive item in The Binding of Isaac: Rebirth (TBOIR)
A bomb with a face and "x10" written near it.
- Adds 10 bombs to your inventory
Character has a lit fuse on his head:
- Other than giving the fuse there is no other continuous effect.
- 4DHR XR1B (PC) - Near first spawn point
- ADD MORE Boom! SEEDS HERE!