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Key Bum

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Font TeamMeat K.pngFont TeamMeat e.pngFont TeamMeat y.png   Font TeamMeat B.pngFont TeamMeat u.pngFont TeamMeat m.png
Removed in Afterbirth †Item icon
Added in Afterbirth †Item icon
Item altar
 
 
 
Table dividing line 1.png
 
Table dividing line 2.png
 
Key Master Key Master
Secret Room Secret Room
Treasure Room Treasure Room
Table dividing line 3.png
 
Added in Afterbirth †(page 4, column 3, row 2)
Removed in Afterbirth †(page 4, column 3, row 2)
 
Key Bum Defeat Ultra Greed as LazarusKey BumKey Bum
Added in Afterbirth

Key Bum is an unlockable passive item added in Afterbirth.

Effects[edit | edit source]

  • Spawns a familiar that follows Isaac around and collects keys, dropping random Chests in return.

Notes[edit | edit source]

Synergies[edit | edit source]

  • BFFS! BFFS!BFFS! Icon.pngIncreases the size and damage of familiars.: Familiar is bigger and drops chests more often.

Bugs[edit | edit source]

Bug Bug! If Credit Card is used in a Shop with keys, Key Bum will not be able to pick up the free keys. This can be fixed if Isaac leaves and re-enters the shop.
Bug Bug! Charged Keys do not increment Key Bum's key count when picked up.

In-game Footage[edit | edit source]

Seeds[edit | edit source]

 PC  WJK1 9R0Z (Treasure Room adjacent to spawn)


Lazarus  Unlocks Lazarus Unlocks Lazarus  Unlocks
Added in Afterbirth †
Missing No.Missing No.Complete the Boss Rush as LazarusLazarus' RagsLazarus' RagsDefeat Isaac as LazarusBroken AnkhBroken AnkhDefeat Satan as LazarusStore CreditStore CreditDefeat ??? as LazarusPandora's BoxPandora's BoxDefeat The Lamb as LazarusWrapped BabyWrapped BabyRemoved in Afterbirth † Defeat Mom's Heart on hard mode as Azazel
Added in Afterbirth † Defeat Mom's Heart on hard mode as Lazarus
Begotten BabyBegotten BabyRemoved in Afterbirth † Defeat Mom's Heart on hard mode as Lazarus
Added in Afterbirth † Defeat Mom's Heart on hard mode as Azazel
Empty VesselEmpty VesselDefeat Hush as LazarusKey BumKey BumDefeat Ultra Greed as LazarusLong BabyLong BabyDefeat Mega Satan as LazarusDripping BabyDripping BabyEarn all hard mode completion marks as Lazarus Compound FractureCompound FractureDefeat Delirium as LazarusPlan CPlan CDefeat Ultra Greedier as Lazarus
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