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|Defeat Ultra Greed as Lazarus|
Effects[edit | edit source]
- Spawns a familiar that follows Isaac around and collects keys, dropping random Chests in return.
- This item belongs to the Super Bum set. Collecting three items from this set will transform Isaac's bums into Super Bum.
Notes[edit | edit source]
Synergies[edit | edit source]
- BFFS!: Familiar is bigger and drops chests more often.
In-game Footage[edit | edit source]
Seeds[edit | edit source]
WJK1 9R0Z (Treasure Room adjacent to spawn)
Bugs[edit | edit source]
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.
|The Binding of Isaac: Rebirth|
|Achievements||Attributes||Bosses||Cards and Runes||Challenges||Chapters|