Dark Bum

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Removed in Afterbirth † Item icon
Added in Afterbirth † Item icon
Item altar
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Added in Afterbirth(page 3, column 13, row 2)
Removed in Afterbirth(page 3, column 3, row 8)

Dark Bum is a passive item.

Effects[edit | edit source]

  • Spawns a familiar that follows Isaac around and collects Red Hearts. For every one-and-a-half Red Hearts collected, Dark Bum will generate one of the following:
  • Added in Afterbirth 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]

  • If Dark Bum enters a Super Secret Room that mimics The Womb The Womb, Cathedral Cathedral, or Removed in Afterbirth Dark Room Dark Room / Added in Afterbirth Library, he will drop Red Hearts, Eternal Hearts, or Black Hearts respectively instead of Soul Hearts.
    • If the Super Secret Room mimics The Womb, he will drop Red Hearts instead of Soul Hearts, then gobble them back up. This can be avoided by allowing Dark Bum to pick up all of the Red Hearts and then quickly exiting the super secret room before he starts dropping hearts. This way, he will drop Soul Hearts.
  • Dark Bum will not pick up Added in Afterbirth Gold Hearts, Added in Afterbirth † Blended Hearts, or Added in Afterbirth † Bone Hearts.
  • Very beneficial for ???, since he has no use for Red Hearts.

Synergies[edit | edit source]

  • Little C.H.A.D. Little C.H.A.D.: Each Half Red Heart dropped by Little C.H.A.D. can be collected by Dark Bum, increasing the amount of pickups dropped.

Interactions[edit | edit source]

  • BFFS! BFFS!: No effect, but familiar is bigger.

In-game Footage[edit | edit source]

History[edit | edit source]

  • v1.02: Dark Bum's Red to Soul Heart conversion rate was set to 1.5:1.
  • v1.031: Dark Bum was changed to have a chance to spawn friendly Blue Spiders or hostile Spiders.

Seeds[edit | edit source]

 PC  WBEG Q22R (Treasure Room adjacent to spawn)

 PC  CS9M XL2P (Treasure Room adjacent to spawn)

 PC  AL07 13JY (Treasure Room adjacent to spawn)

 PS4  7276 4P61 (Treasure Room adjacent to spawn)

 Vita  EVQ8 P80Q (Treasure Room adjacent to spawn)

 Switch  Hard mode only VYNW SA7F (Treasure Room left from spawn)

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