The Small Rock is an unlockable passive item.
Effects[]
The rock gets wedged in Isaac's head and makes him bleed.
Increases Damage by 1, increases Tears by 0.2, decreases Speed by 0.2, and turns tears gray.Tears also get somewhat larger.
Trivia[]
- This is most likely to be a reference to the biblical story of David and Goliath, where David kills the giant known as Goliath with a small rock, hence the name.