Scolex

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Scolex
Boss Scolex.png
Base HP
300
Stage HP
0
Found In
Stage womb.png
Dropped Items
Boss Boss  

Scolex is a large tapeworm boss found in The Womb.

Behavior[edit | edit source]

Scolex is invulnerable to damage. Only his tail, which constantly blinks, can be damaged.

  • Jumps out of the ground towards the player, then burrows back into the ground. This attack is repeated multiple times. If Scolex is hit by any explosion, he will be deflected back from the explosion when in midair.
  • When Scolex's head pops out, he will shoot multiple blood shots of various sizes, similar to Monstro.
  • When Scolex's tail pops out, he will fire three Ipecac Ipecac shots at the player.

Champion Versions[edit | edit source]

  • Black: Scolex is larger, slower, and has more health.

Notes[edit | edit source]

Bugs[edit | edit source]

Bug Bug! When Scolex is slowed, some of his body parts may detach or won't even show up - they will only be visible while entering the ground (especially the tail).
Bug Bug! If the final vulnerable segment of Scolex's tail is destroyed using the Chaos Card, the boss will glitch and become harder to kill. The tail will appear again if his head gets bombed or he hits Isaac.
Bug Bug! If you petrify Scolex (with Mom's Contacts or other similar items) when it is in mid-air, you can damage any segment of its body.
Bug Bug! If you fire immediately upon entering the Boss Room, rarely, you can damage Scolex before it emerges.
Bug Bug! Afterbirth† Indicator.png If Scolex is under the effects of Broken Modem in mid-air, his jump will be stopped and he will fall.
Bug Bug! If Scolex is frozen with Midas' Touch and attacked, he can split into two halves, one with his head and one with his tail.

Gallery[edit | edit source]

Trivia[edit | edit source]

  • Scolex can be considered an older or younger version of Pin, but not a posthumous one (that title goes to The Frail).
  • A scolex is the name given to the head of a tapeworm.
  • Scolex was present in the original Binding of Isaac.
  • Compared to the original Binding of Isaac, Scolex's head and tail attacks are swapped.


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

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