??? (Boss)

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Boss Blue Baby name.png
Boss versus screen image
 
 
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In-game appearance
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Boss
Stage The Chest icon.png
Stage The Void icon.png
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Final Boss Chest
Disambig.png This article is about the boss at the end of The Chest. For other uses, see ??? (Disambiguation). For other uses, see ??? (Disambiguation).

??? is the boss of The Chest The Chest, accessed by defeating Isaac in the Cathedral Cathedral while holding The Polaroid The Polaroid, which is always dropped by Mom after defeating Isaac five times. He is a posthumous version of Isaac, and the final boss of Ending 14.

Behavior[edit | edit source]

During all three of ???'s phases, he will always shoot multiple bullets in the player's direction at fixed intervals at a faster rate than Isaac. After taking enough damage, he will begin to shoot double bullets and homing bullets.

??? will not begin attacking the player until he takes damage.

Phase 1

  • Shoots seven or eight rapid-fire lines of bullets in all directions with varying intensity and speed. After taking enough damage, these lines will curve.
  • After taking enough damage, ??? will Shoot eight lines of two bullets in all directions that curve as they move. Each line consist of one normal bullet and one homing bullet.

Phase 2

  • Two Eternal Flies begin to circle ???, occasionally blocking tears.
  • Summons Attack Flies, Moters or Pooters to orbit around himself.
  • Fires 4 homing bullets in a lop-sided X pattern.
  • Fires 8 homing bullets in all directions.

Phase 3

  • Spawns flies more aggressively.
  •  ??? will teleport at a distance in front of the player, either in the last direction he was moving or directly onto the player if he didn't move at all. ??? will not teleport if he is slowed (e.g. with a Stop Watch Stop Watch).
  • Uses the two curved line shots from the first phase.

Gallery[edit | edit source]

Unlockable Items[edit | edit source]

In addition, beating ??? with a particular character for the first time will place a Polaroid Completion Mark on that character's post-it note.

Trivia[edit | edit source]

  •  ??? was added in the Wrath of the Lamb DLC for the original The Binding of Isaac.
  • The music that plays during this boss fight is titled Ascension.[1] The term "ascend" is typically used in religion as the act of one's soul rising to Heaven.
  •  ???, along with Isaac, are the only two bosses who do not "die" upon losing all their health. Instead, ??? teleports away and the battle ends.
  •  ??? is commonly referred to as the 'blue baby' by the Binding of Isaac community, as well as Steam Achievements.
  • Added in Afterbirth An identical ??? fight, with identical behavior and music, is used as the first phase of Hush, using a different sprite. The Hush version also has half the HP.
  • Added in Afterbirth † Delirium's ??? form is one of its only forms that don't have any melted features, along with both of the Angels.

References[edit | edit source]


Bosses Boss Monstro.png
Chapter 1
Stage The Basement icon.pngStage The Cellar icon.pngStage Burning Basement icon.png
GeminiStevenBlighted OvumDingleThe Duke of FliesFamineFistulaGurglingsThe HauntLarry Jr.MonstroPinWidowThe FallenThe Headless Horseman
DangleLittle HornRag ManTurdlings
Chapter 2
Stage The Caves icon.pngStage The Catacombs icon.pngStage Flooded Caves icon.png
ChubC.H.A.D.Carrion QueenDark OneGurdyGurdy Jr.The HollowThe HuskMega FattyMega MawPeepPestilencePolycephalusThe WretchedThe FallenThe Headless Horseman
The ForsakenThe FrailThe Stain
Big HornRag Mega
Chapter 3
Stage The Depths icon.pngStage Necropolis icon.pngStage Dank Depths icon.png
The AdversaryThe BloatThe CageThe GateMonstro IIGishLokiMask of InfamyWarThe FallenThe Headless HorsemanMom
Brownie
Sisters Vis
Chapter 4
Stage The 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
Blue Womb
???
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
The Void
Stage The Void icon.png
Delirium
Greed Mode
Ultra Greed
Ultra Greed
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