Key Bum

Treasure Room Secret Room Key Master   (page 4, column 3, line 2)   Defeat Ultra Greed as Lazarus Key Bum

Key Bum is an unlockable passive item added in Afterbirth.

Effects

• Spawns a familiar that follows Isaac around and collects keys, dropping random Chests in return.
• This item belongs to the Super Bum set. Collecting all three items in this set will grant a Super Bum familiar.

Notes

• Key Bum will not pick up golden keys.
• Key Bum will pick up charged keys without additional benefit.

Interactions

• BFFS!

  Increases the size and damage of familiars.

  : Familiar is bigger and drops chests more often.
• Duct Tape

  Stops Isaac's familiars from moving.

  : Familiar will stay in place relative to Isaac.
• Extension Cord

  Beams of yellow electricity flow between Isaac and his familiars, damaging any enemies between them.

  : Familiar will occasionally be connected to Isaac via electricity.

Bugs

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! Charged Keys do not increment Key Bum's key count when picked up.

Seeds

 PC  WJK1 9R0Z (Treasure Room adjacent to spawn)