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Teratoma

From Binding of Isaac: Rebirth Wiki
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Boss Teratoma name.png
Boss versus screen image
 
 
Table dividing line 1.png
 
In-game appearance
Table dividing line 2.png
 
Boss
Stage The Womb icon.pngStage Utero icon.pngStage Scarred Womb icon.png
Stage The Void icon.png
Degraded Boss
Small
Stage The Catacombs icon.pngStage Necropolis icon.pngStage Sheol icon.png
Medium
Stage The Catacombs icon.pngStage The Depths icon.pngStage Necropolis icon.pngStage Dank Depths icon.pngStage Sheol icon.pngStage Dark Room icon.png
Large
Stage Sheol icon.pngStage The Chest icon.pngStage Dark Room icon.png
Table dividing line 3.png
 
Boss Boss

Teratoma is the posthumous version of Fistula that can appear in all environments of Chapter 4.

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 with 15 HP each.
  • Each of the three medium Teratomas break into two small Teratomas with 8 HP each.
  • 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 was added in the Wrath of the Lamb DLC for the original The 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
Stage The Basement icon.pngStage The Cellar icon.pngStage Burning Basement icon.png
Blighted OvumDingleThe Duke of FliesFamineFistulaGeminiGurglingsThe HauntLarry Jr.MonstroPinStevenWidowThe FallenThe Headless Horseman
Added in  Afterbirth DangleLittle HornRag ManTurdlings
Chapter 2
Stage The Caves icon.pngStage The Catacombs icon.pngStage Flooded Caves icon.png
Carrion QueenC.H.A.D.ChubDark OneGurdyGurdy Jr.The HollowThe HuskMega FattyMega MawPeepPestilencePolycephalusThe WretchedThe FallenThe Headless Horseman
Added in  Afterbirth The ForsakenThe FrailThe Stain
Added in Afterbirth † Big HornRag Mega
Chapter 3
Stage The Depths icon.pngStage Necropolis icon.pngStage Dank Depths icon.png
The AdversaryThe BloatThe CageThe GateGishLokiMask Of InfamyMonstro IIWarThe FallenThe Headless HorsemanMom
Added in  Afterbirth Brownie
Added in Afterbirth † Sisters Vis
Chapter 4
Stage The Womb icon.pngStage Utero icon.pngStage Scarred Womb icon.png
BlastocystThe BloatConquestDaddy Long LegsDeathLokiiMama GurdyMr. FredScolexTeratomaTriachnidThe FallenThe Headless HorsemanMom's HeartIt Lives
Added in Afterbirth † Sisters VisThe Matriarch
Added in  Afterbirth Blue Womb
???
Added in  Afterbirth Hush
Chapter 5
Stage Sheol icon.pngStage Cathedral icon.png
SatanIsaac
Chapter 6
Stage Dark Room icon.pngStage The Chest icon.png
???The LambMega Satan
Added in Afterbirth † The Void
Stage The Void icon.png
Added in Afterbirth † Delirium
Added in  Afterbirth Greed Mode
Ultra Greed
Added in  Afterbirth Ultra Greed
Added in Afterbirth † Ultra Greedier
The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
Achievements Achievements Attributes Attributes Bosses Bosses TarotCard.png Cards and Runes Challenges Challenges Chapters Chapters
Characters Characters MainPageBabies.png Co-op Items Items Item pools Item pools Monsters Monsters Objects Objects
Pickups Pickups Pills Pills Rooms Rooms Seeds Seeds Transformations Transformations Trinkets Trinkets