Stone Grimace

A Stone Grimace is an invincible stationary statue with the shape of a head with a wide-open mouth and hollow eyes. Stone Grimaces will sporadically spit a Red bullet in Isaac's direction until the room is cleared by killing regular enemies, or by pressing Pressure Plates. When the room is cleared, the Stone Grimace closes its eyes and mouth. Contents • 1 Variations • 1.1 Vomit Grimace • 1.2 Triple Grimace • 1.3 Gaping Maw • 1.3.1 Notes • 1.4 Broken Gaping Maw • 1.5 Constant Stone Shooter • 1.6 Cross Stone Shooter • 1.7 Brimstone Head • 1.8 Stone Eye • 1.9 Bomb Grimace • 1.10 Quake Grimace • 2 Notes • 3 Gallery • 4 Trivia • 5 Bugs

• These monsters are impassable, even with flight.
• These monsters can be destroyed using Chaos Card, Little Horn and Euthanasia, though they will respawn upon leaving and re-entering the room they were in.
• With Infestation 2, killing Stone Grimaces creates a Blue Spider, allowing blue spiders to be farmed by leaving and re-entering the room.
• Fire Mind tears that hit these monsters can still cause explosions.
• Hitting Grimaces increases the Dead Eye damage multiplier.
• If an uncleared room has Cross Grimaces, leaving and then re-entering the room by bombing a door will make them stop shooting, making the room easier.
• 4 Stone Grimaces can appear in Loki's boss fight.

• Stone Eye is likely based on the Laser Eye from one of Edmund McMillen's previous games named Super Meat Boy.
• Stone Grimaces and their variants play their appearance animation for a second before resuming as deactivated in a cleared room if they were deactivated.
• They now no longer reuse their appear animation in a cleared room when the player re-enters it.
• If a Constant Stone Shooter is deactivated, it closes its eyes and mouth and stops crying, looking similar to Stone Grimaces upon deactivation. The difference is that deactivated Constant Stone Shooters still have a crack on top of their heads.
• If a Gaping Maw or Broken Gaping Maw is deactivated, unlike other Grimaces, it doesn’t fully close its eyes. Instead, it closes its eyes only partially and makes a frown.
• Grimaces will turn green if poisoned.
• Great Gideon is the boss variant of Stone Grimaces.
• Gaping Maws were going to have fangs, as shown on the Bestiary.
• The Bomb Grimace and Quake Grimace first appeared in the Antibirth mod.
• Quake Grimaces have substantially different designs compared to their original appearance in Antibirth. Most notably, they are the same size as other Stone Grimaces instead of being twice as large, and they do not have the large gash in their body.
• Pre-release content of Repentance as well as the "death preview" shows the original version of Quake Grimaces, suggesting this change was made late in development.
• Bomb Grimaces are the only Grimaces who don't appear in the bestiary.
• It's "Grimace" on it's name is probably a reference to the character Grimace, from McDonalds.