Hungry Soul is a passive item added in The Binding of Isaac: Repentance.
- Gives enemies the chance to spawn ghosts when they die, which rapidly chase and deal contact damage to enemies.
- Ghosts deal contact damage equal to half of Isaac's damage (2x Isaac's damage per second).
- Enemies killed by ghosts are unable to spawn more ghosts, except for those killed by the ghost's final explosion.
- After 5 seconds, the ghost explodes, dealing 7 damage to nearby enemies up to 3 times. Isaac does not take damage from the explosion.
- The explosion is capable of damaging Bonies summoned by Book of the Dead.