King Baby

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King   Baby
Item icon
Item altar
"Hail to the king, baby!"
Table dividing line 1.png
Item ID
5.100.472
Table dividing line 2.png
Item Pool
Normal and hard modes only Shop Shop
Greed and greedier modes only Shop Shop
Table dividing line 3.png
Collection Grid
Removed in Repentance(page 4, column 7, row 6)
Added in Repentance(page 4, column 8, row 6)
Unlock Method
King Baby Defeat Delirium as ???
Added in Afterbirth †

King Baby is an unlockable passive item added in Afterbirth †.

Effects[edit | edit source]

  • Grants a familiar that follows Isaac and always appears first in the familiar chain.
    • While firing tears, King Baby stops moving and glows white.
    • While King Baby is stationary, other familiars remain stationary as well.
    • When Isaac stops firing tears, King Baby moves rapidly back towards Isaac.

Notes[edit | edit source]

  • King Baby will move back towards Isaac during Isaac's hurt animation, even if a fire button is still being held.
  • 15►Abel Abel will still reflect Isaac's movements, and not King Baby ones.
  • 15►Lil Delirium Lil Delirium depends on which familiar form it takes.
  • Familiars unaffected by King Baby include:

Synergies[edit | edit source]

  • 15►Isaac's Heart Isaac's Heart: Isaac can fire tears and leave King Baby and the heart behind, and run into a group of enemies without being damaged.

Interactions[edit | edit source]

  • 15►BFFS! BFFS!: Increases King Baby's size. No other effect.
  • Duct Tape Duct Tape: King Baby will stay in place relative to Isaac until Isaac starts firing tears. Then King Baby will remain stationary until Isaac has stopped firing and will rapidly move back to him.

In-game Footage[edit | edit source]

Trivia[edit | edit source]

  • King Baby references the official Binding of Isaac tarot card set, in which ??? represents the Emperor.
  • The Steam achievement description for unlocking King Baby says "Unlocked a new co-player baby," despite it being an item.
  • Before Repentance, King Baby's pickup quote was "Lord of the dead!".
  • King Baby's Repentance quote is a reference to Duke Nukem's famous line.


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