Binding of Isaac: Rebirth Wiki

Added in Afterbirth †

Pointy Rib is an unlockable passive item added in The Binding of Isaac: Afterbirth † (Booster Pack #5).


  • Spawns a bone familiar that can be aimed with the fire buttons in all directions and does contact damage.
    • The familiar will continuously hover back and forth in the direction that it is pointing in.
  • The damage is equal to Isaac's tear damage and is dealt 6 times per second.
    • The damage increases when Isaac is moving on the direction the familiar is pointing in based on Isaac's current speed, up to twice of its base damage.
  • The familiar will damage Poop Poops and Fire Place Fire Places.


  • Proptosis Proptosis: Triples the contact damage. Has no penalty with range.


  • BFFS! BFFS!: Doubles the base contact damage, but not the bonus damage granted from Isaac's movement.

In-game footage[]


  • The item is possibly a reference to the Genesis story where God created Eve by removing a rib from Adam.