Binding of Isaac: Rebirth Wiki
Binding of Isaac: Rebirth Wiki

The Cage is a boss that can appear:


  • Leaps off-screen and tries to land in Isaac's path; predicting his movement. Leaving a small puddle of damaging Grey Creep and sending out 4-5 lines of rock waves upon landing.
  • Quickly shoots 6 streams of 3-7 projectiles in a spiral pattern, similar to Mom's Heart/It Lives.
  • Curls up in a ball and rolls towards Isaac, bouncing off walls and obstacles around the room.
  • Spawns a grey-coloured Vis that shoots a brown-coloured 15►Brimstone Brimstone laser.
    • The different colours are purely cosmetic, and it behaves exactly like a normal Vis.
    • Any Vis caught in The Cage's rolling attack will be killed.

Champion Versions Needs to be unlocked[]

  • Added in Afterbirth Green: Periodically leaves puddles of Green Creep and doesn't spawn any Vis.
  • Added in Afterbirth Pink: Two Cages, each with 50% HP (400), replace the normal Cage. They never perform their jump attack.



  • Added in Afterbirth / Removed in Repentance15►Host Hat Host Hat and 15►Pyromaniac Pyromaniac make Isaac immune to The Cage's rock waves, since it is considered to be the same as explosions by the game.
  • When The Cage jumps, there is a delay to his falling animation, causing Isaac to be hurt before the Cage falls back down.
  • If Isaac is flying on Pits, The Cage can hit Isaac if it jumps towards him, and it will then be pushed back to the ground.


  • It has the highest health of any boss fought before Mom's Heart.
  • It is the posthumous version of Mega Fatty.
  • Although the Cage is a dead version of Mega Fatty, it also bears a lot of resemblances to a giant Vis as well, since it is a fat headless body with a giant cut in its belly. Another slight nod to their resemblance is also the Cage's ability to spawn Vis with a Grey color palette and a Brown Brimstone laser.
  • The stitches on the Cage's body resemble Y-shaped incisions commonly made at the start of an autopsy.
  • Despite being a possible encounter before Mom, The Cage has more HP than her.

Bosses Boss Monstro.png
Chapter 1
Stage Basement icon.pngStage Cellar icon.pngStage Burning Basement icon.png
GeminiStevenBlighted OvumDingleThe Duke of FliesFamineGurglingsThe HauntLarry Jr.MonstroPinWidowThe FallenThe Headless Horseman
DangleLittle HornRag ManTurdlings
Baby Plum
Chapter 1.5
Stage Downpour icon.pngStage Dross icon.png
Lil BlubWormwoodThe RainmakerMin-MinClogColostomiaTurdlet
Chapter 2
Stage Caves icon.pngStage Catacombs icon.pngStage Flooded Caves icon.png
FistulaChubC.H.A.D.Carrion QueenDark OneGurdyGurdy Jr.The HollowThe HuskMega FattyMega MawPeepPestilencePolycephalusThe WretchedThe FallenThe Headless Horseman
The ForsakenThe FrailThe Stain
Big HornRag Mega
Chapter 2.5
Stage Mines icon.pngStage Ashpit icon.png
Reap CreepTuff TwinsHornfelGreat GideonSingeThe ShellThe Pile
Chapter 3
Stage Depths icon.pngStage Necropolis icon.pngStage Dank Depths icon.png
The AdversaryThe BloatThe CageThe GateMonstro IIGishLokiMask of InfamyWarThe FallenThe Headless HorsemanMom
Sisters Vis
Reap CreepThe Pile
Chapter 3.5
Stage Mausoleum icon.pngStage Gehenna icon.png
The SirenThe HereticThe VisageThe Horny BoysMomMom's Heart
Chapter 4
Stage Womb icon.pngStage Utero icon.pngStage Scarred Womb icon.png
BlastocystThe BloatConquestDaddy Long LegsTriachnidDeathLokiiMama GurdyMr. FredScolexTeratomaThe FallenThe Headless HorsemanMom's HeartIt Lives
Sisters VisThe Matriarch
Stage Corpse icon.png
ChimeraThe ScourgeRotgutMother
Chapter 5
Stage Sheol icon.pngStage Cathedral icon.png
Chapter 6
Stage Dark Room icon.pngStage Chest icon.png
???The LambMega Satan
The Void
Stage The Void icon.png
Stage Home icon.png
DogmaThe BeastUltra DeathUltra FamineUltra PestilenceUltra War
Greed Mode
Ultra Greed
Ultra Greed
Ultra Greedier
The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth The Binding of Isaac: Rebirth
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