Monstro II
Boss Monstro II
Found In
The Depths
Dropped Items
Boss Pool
Unlocked By
Default Boss

Monstro II is the posthumous version of Monstro. Monstro II consists of a skull with only a small patch of skin covering its right eye, which is now white.


  • Hop towards the player, similar to Monstro.
  • When Isaac is standing alongside Monstro II, he will shoot a brimstone laser.
  • Leaps off screen and lands on Isaac's position two times in a row.
  • Shoots eight blood tears after landing the first time.
  • Spawns 4 suckers after landing the second time.

Champion Versions Edit

  • Red: Moves and attacks much more quickly, but only spawns 2 suckers when landing.

Trivia Edit

  • The strategy of always standing horizontally to Monstro II to make him shoot brimstone is not as effective. A new pattern was added so Monstro II will always make a sky leap/small hop after a brimstone attack.
  • A spinal cord can be seen attached to Monstro II in his Versus image, meaning at one point Monstro had a lower body.

Gallery Edit


Bosses Boss Monstro
Basement MonstroGeminiDingleLarry Jr.The Duke of FliesGurglingsFistulaStevenFamine
Cellar Gurdy Jr.PinWidowBlighted OvumThe HauntDingleLarry Jr.The Duke of FliesGurglingsFistulaFamine
The Caves ChubGurdyGurdy Jr.Mega MawMega FattyDark OneC.H.A.D.Pestilence
Catacombs The HollowThe HuskPeepPolycephalusThe Carrion QueenThe WretchedDark OnePestilence
The Depths The CageMonstro IIThe AdversaryThe GateLokiGishWarMom
Necropolis The BloatThe Carrion QueenMask of InfamyThe WretchedThe GateLokiWarMom
The Womb Mr. FredScolexTeratomaMama GurdyThe BloatLokiiDeathConquestMom's HeartIt Lives
Utero BlastocystDaddy Long LegsTeratomaMama GurdyThe BloatLokiiTriachnidDeathConquestMom's HeartIt Lives
Sheol The FallenSatan
Dark Room The LambMega Satan
Cathedral Isaac
The Chest ???Mega Satan
Devil Room Krampus
Angel Room Angel
Levels 1-5/7 The FallenThe Headless Horseman
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