Key Bum

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Item icon
Item altar

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Item Pool Treasure Room.png Treasure Room
Item Pool Secret Room.png Secret Room
Item Pool Key Master.png Key Master
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(page 4, column 3, line 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.
  • Added in Afterbirth This item belongs to the Super Bum
    Super Bum App.png
  • Replaces Bum Friend, Dark Bum, and Key Bum for Super Bum.
  • Collects any of the other beggars' pickups, and offers twice the rewards.
  • set. Collecting three items from this set will transform Isaac's bums into Super Bum.

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)

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