Monstro's Tooth is an unlockable activated item.


  • A friendly Monstro jumps on a random enemy, dealing 120 damage while destroying nearby obstacles like rocks.


  • This item will target Isaac if it is used in a room without monsters and will cause damage.
  • Monstro will target shopkeepers.
  • Dlc nr indicator.pngLike Mom and Satan's stomp attacks, this attack is treated as an explosion, so Collectible Pyromaniac icon.png Pyromaniac and Dlc a indicator.png Collectible Host Hat icon.png Host Hat will be activated if Monstro falls on Isaac.
  • Dlc na indicator.png This item does not affect Monstro.

In-game Footage



PC A2FG 42AR (Treasure Room adjacent to spawn)

PC Dlc r indicator.png 3ZB7 V6MT (Treasure Room adjacent to spawn)

Vita ZX3S DMQ8 (First floor Treasure Room)

3DS QQD4 7QLK (Treasure Room adjacent to spawn)

SmallIsaac.png The Binding of Isaac: Rebirth SmallIsaac.png
MainPageAchievements.png Achievements MainPageAttributes.png Attributes MainPageBosses.png Bosses TarotCard.png Cards and Runes MainPageChallenges.png Challenges MainPageChapters.png Chapters
Character Isaac appearance.png Characters MainPageBabies.png Co-op MainPageItems Small.png Items Collectible Isaac's Tears icon.png Item pools MainPageMonsters.png Monsters MainPageObjects.png Objects
Red Heart.png Pickups BlueBlue.png Pills MainPageRooms.png Rooms MainPageSeeds2.png Seeds Transformation Guppy appearance.png Transformations Trinket The Left Hand icon.png Trinkets
Community content is available under CC BY-NC-SA 3.0 unless otherwise noted.