Pet Rock is an unlockable familiar in Fiend Folio, a mod for The Binding of Isaac.

Spawns a stationary rock familiar that blocks enemy projectiles.

The rock can be pushed around by Isaac or enemies.

Pushing the rock into a pit will form a bridge over the pit that can be walked onto. The rock will re-appear upon entering a different room, but won't appear in rooms where it's been turned into a bridge.

Defeat Mom's Heart or It Lives! on Hard Mode as Golem.

Pet Rock can be found in the following item pools:

The following tags are applied to this item:

The following special synergies and interactions for Pet Rock have been documented.

* Note that not all possible synergies and interactions are listed here.

• Check out the item description on the mod's external Wiki.
• Download Fiend Folio from the Steam Workshop.