Teratoma

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Teratoma
Boss Teratoma.png
Base HP
Large: 60
Medium: 15
Small: 8
Stage HP
0
Found In
Stage womb.pngStage utero.png
Stage the void.png
Mini-Boss
Small
Stage catacombs.png
Medium
Stage depths.pngStage necropolis.png
Stage sheol.png
Large
Stage sheol.png
Stage chest.pngStage dark room.png
Dropped Items
Boss Boss  

Teratoma is the posthumous version of Fistula that can appear in The Womb and the Utero.

Behavior[edit | edit source]

  • Moves around the room slowly, bouncing off the walls.
  • When enough health is depleted, the one large Teratoma breaks into three medium Teratomas.
  • Each of the three medium Teratomas break into two small Teratomas.
  • After the smallest Teratomas are defeated, they spawn two Spiders unless they are over a pit or other obstacle.

Gallery[edit | edit source]

Trivia[edit | edit source]

  • Teratoma also appeared in the original Binding of Isaac.
  • A teratoma is a tumor that contains tissues which are atypical for its placement in the body. This can include hair, teeth, bones, and so on.
  • Unlike other posthumous bosses, Teratoma is found 3 chapters away from its base boss, Fistula.
  • Unlike the original Binding Of Isaac, Teratoma doesn't bounce off of Rocks.
  • Teratoma is one of the three bosses that can be spawned by It Lives, the other two being Chub and Polycephalus.


Bosses Boss Monstro.png
Chapter 1 Blighted OvumDingleThe Duke of FliesFamineFistulaGeminiGurglingsThe HauntLarry Jr.MonstroPinStevenWidow
Added in Afterbirth DangleLittle HornRag ManTurdlings
Chapter 2 C.H.A.D.ChubDark OneGurdyGurdy Jr.The HollowThe HuskMega FattyMega MawPeepPestilencePolycephalusCarrion QueenThe Wretched
Added in Afterbirth The ForsakenThe FrailThe Stain
Added in Afterbirth † Big HornRag Mega
Chapter 3 The AdversaryThe BloatThe CageThe GateGishLokiMask of InfamyMonstro IIWarMom
Added in Afterbirth Brownie
Added in Afterbirth † Sisters Vis
Chapter 4 BlastocystThe BloatConquestDaddy Long LegsDeathIt LivesLokiiMama GurdyMom's HeartMr. FredScolexTeratomaTriachnid
Added in Afterbirth † Sisters VisThe Matriarch
Added in Afterbirth Blue Womb Added in Afterbirth Hush
Chapter 5 SatanIsaac
Chapter 6 ???The LambMega Satan
Added in Afterbirth Greed Mode Added in Afterbirth Ultra Greed
Added in Afterbirth † Ultra Greedier
Added in Afterbirth † The Void Added in Afterbirth † Delirium
Chapters 1-4 The FallenThe Headless Horseman


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