Dark Bum

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Item icon
Item altar

 
 
 
 
 
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Item Pool Treasure Room.png Treasure Room
Item Pool Devil Room.png Devil Room
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Added in Afterbirth (page 3, column 13, line 2)
Removed in Afterbirth (page 3, column 3, line 8)

Dark Bum is a passive item.

Effects

  • 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
    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

  • If Dark Bum enters a Super Secret Room that mimics The Womb, The Cathedral, or Removed in Afterbirth The 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 a considerable amount of soul hearts.
  • Dark Bum will not pick up Added in Afterbirth Gold Hearts, Added in Afterbirth † Blended Hearts, or Added in Afterbirth † Bone Hearts.

Synergies

  • ???: Greatly improves chances of survival, due to Dark Bum converting useless red hearts into useful soul hearts.
  • BFFS! BFFS!BFFS! Icon.pngIncreases the size and damage of familiars.: Familiar is bigger and increased chance of dropping pickups. [citation needed]
  • Little C.H.A.D. Little C.H.A.D.Little C.H.A.D. Icon.pngA familiar who will drop a half red heart every 2 rooms.: Convert hearts dropped by Little C.H.A.D. into soul hearts.
  • Gimpy GimpyGimpy Icon.pngHas a chance of spawning a soul heart or black heart when taking damage. Enemies have a chance to drop a Half Red Heart after being killed.: When enemies die and drop red hearts, they get converted into soul hearts.
  • Humbling Bundle Humbling BundleHumbling Bundle Icon.pngGives one extra pickup (1+1 Free version) of Red Hearts, pennies, bombs, and keys. Does not work with blue, black, and half red hearts, nickels, and dimes.: All red hearts dropped are double hearts, so the conversion ratio is greatly improved.
  • Child's Heart Child's HeartChild's Heart Icon.pngIncreases the chance of a Heart dropping after clearing a room, and the chance of finding a Heart when opening a Chest.: Increases red heart drops and thus increases usage of Dark Bum.

Interactions

  • Added in Afterbirth † The Forgotten: Makes it harder to keep The Forgotten's bone heart containers, since every red heart on the floor will be collected and transformed into soul hearts, which can only be used by The Soul.
  • Added in Afterbirth Keeper: Heart pickups cannot spawn, rendering Dark Bum useless.

In-game Footage

Trivia

  • Prior to Version 1.02 Dark Bum's red to soul heart conversion rate was 1:1, but it was set to 1.5:1 with Version 1.02.
  • Prior to Version 1.031, Dark Bum did not have a chance to spawn spiders of either kind. This was likely done to nerf its use with characters that start with no or few heart containers.

Seeds

 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)


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