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Blighted Ovum
Boss Blighted Ovum
Found In
The Cellar
Boss Rush
Dropped Items
Boss Pool


The Blighted Ovum is one of the bosses that can appear in The Cellar, and is the posthumous version of Gemini.

BehaviorEdit

The Blighted Ovum starts off separated into two parts.

  • The spirit sibling is invincible and slowly floats towards the player, firing a horizontal Brimstone shot whenever the player is to its left or right.
  • The larger sibling constantly chases the player and progressively gets faster, while leaving behind a trail of red creep. Unlike Gemini he will not stop for breath, only slow down.

TriviaEdit

  • The Blighted Ovum was added in the Wrath of the Lamb DLC for the original Binding of Isaac.
  • In medicine, a blighted ovum is a pregnancy in which the early pregnancy appears normal on an ultrasound scan, but later no visible embryo develops.

GalleryEdit

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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