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Font TeamMeat B.pngFont TeamMeat B.pngFont TeamMeat F.png
Item icon
Item altar

Item Pool Treasure Room.png Treasure Room
Item Pool Key Master.png Key Master
Added in Afterbirth (page 3, column 7, line 2)
Removed in Afterbirth (page 3, column 7, line 7)

BBF is a passive item.

Effects[edit | edit source]

  • Spawns a familiar that flies around the room in a manner similar to the Boom Fly and explodes on contact with an enemy dealing 60 damage to all enemies within its blast radius, and 10 damage to the enemy it touched.
    • It will respawn 10 seconds after exploding, or upon entering a different room.
  • This item belongs to the Beelzebub set. Collecting three items from this set will transform Isaac into a giant humanoid fly.

Notes[edit | edit source]

  • Most obtained bomb modifiers are applied to BBF as well.
  • The blast can damage Isaac as a normal bomb would.
  • For the first few moments after entering a room, the familiar will do contact damage instead of exploding. This means the familiar will not blow up in Isaac's face if there is an enemy right next to the familiar's starting point. However, it may kill enemies that explode on death.

Synergies[edit | edit source]

    BFFS! Icon.pngIncreases the size and damage of familiars.
    - Doubles the contact damage to 20 and increases explosion damage by 25.
  • Hot Bombs Hot Bombs
    Hot Bombs Icon.pngGrants 5 bombs. Isaac's bombs leave behind fire that damages enemies upon contact.
    - BBF leaves fire on the floor which will not damage Isaac.
  • Mr. Mega Mr. Mega
    Mr. Mega Icon.pngGives Isaac 5 bombs, and makes all dropped bombs larger, which have an increased blast radius and increased damage.
    - The explosion damage increases by 50 points.
  • Pyromaniac Pyromaniac
    Pyromaniac Icon.pngIsaac heals 1 heart instead of taking damage from an explosive source. Adds 5 bombs.
    - BBF now heals Isaac instead of harming him.
  • Sad Bombs Sad Bombs
    Sad Bombs Icon.png+5 Bombs. Upon exploding, bombs shoot 8 tears off in every direction, similar to Tammy's Head. The tears are affected by any tear modifiers Isaac has on his own tears.
    - BBF will fire tears upon exploding, dealing more damage to whatever it explodes on.
  • Added in Afterbirth Brimstone Brimstone
    Brimstone Icon.pngTears are replaced by a laser beam that pierces through all enemies and obstacles in its path and deals high damage. Can only be fired after a short charge-up period.
    - BBF will fire brimstone beams in all directions upon exploding.

Interactions[edit | edit source]

  • Added in Afterbirth Bomber Boy Bomber Boy
    Bomber Boy Icon.png+5 bombs. Isaac's bombs will now explode in a large cross-shaped pattern (roughly 5 bombs explosions wide). This also affects troll bombs.
    - No cross explosions. Damage from the explosion is halved against the initial target, but others caught in the blast take full damage.

In-game footage[edit | edit source]

Trivia[edit | edit source]

  • The item's name is a reference to the acronym BBW, Which stands for "Big Beautiful Woman".

Seeds[edit | edit source]

 PC  RYLA DX9S (Treasure room adjacent to spawn)

 PS4  ROZM NF2J (Treasure room adjacent to spawn)

 Vita  W2WV-XNKJ (First floor treasure room)

 3DS  PP2A L6ZT (First floor treasure room)

 PC  Added in Afterbirth Normal and hard modes only Y4JH C0D4 (treasure room adjacent to spawn)

 Switch  D4RZ HJ89 (Treasure room adjacent to spawn)

Bugs[edit | edit source]

Bug Bug! Added in Afterbirth In L-shaped rooms, BBF can sometimes phase through walls.
Bug Bug! Added in Afterbirth † BBF sometimes does contact damage to the Portal without exploding.

Fly Items

Skatole Skatole
Skatole Icon.pngAll types of fly except Boom Fly and Red Boom Fly become passive and slowly move towards Isaac. Does not prevent contact damage.
Halo of Flies Halo of Flies
Halo of Flies Icon.pngSpawns two pretty fly familiars that block enemy shots and deal contact damage to enemies.
Distant Admiration Distant Admiration
Distant Admiration Icon.pngA red attack fly circles further out than the Halo of Flies / Pretty Flies, but closer than Forever Alone. Deals more damage than Forever Alone.
Forever Alone Forever Alone
Forever Alone Icon.pngSpawns a blue attack fly that orbits a long distance from Isaac.
Infestation Infestation
Infestation Icon.png1-3 Blue flies randomly spawn every time Isaac gets hit.
The Mulligan The Mulligan
The Mulligan Icon.pngTears have a 1/6 chance of spawning allied blue flies when they hit an enemy.
Hive Mind Hive Mind
Hive Mind Icon.pngIncreases the size of blue spiders and Blue Flies and doubles the amount of damage they deal.
Smart Fly Smart Fly
Smart Fly Icon.pngAfter Isaac takes damage, this fly will deal continuous touch damage to whatever enemy caused the damage until it is dead. The fly will then systematically attack 1 enemy at a time until the room is cleared.
BBF Icon.pngSpawns a familiar that flies around the room in a manner similar to the Boom Fly and explodes on contact with an enemy. Respawns after ten seconds.
Best Bud Best Bud
Best Bud Icon.pngWhen hit, summons a white attack fly similar to Distant Admiration for the current room.
Big Fan Big Fan
Big Fan Icon.pngSpawns a large orbital familiar that blocks enemy projectiles and deals slight contact damage to enemies.
???'s Only Friend ???'s Only Friend
Blue Baby's Only Friend Icon.pngSummons a big attack fly that can be controlled with the shooting direction-keys.
Added in Afterbirth Friend Zone Friend Zone
Friend Zone Icon.pngA white orbiting fly which deals 3 contact damage per tick to enemies. This familiar orbits Isaac at a middle length distance somewhere between Distant Admiration and Forever Alone.
Added in Afterbirth Lost Fly Lost Fly
Lost Fly Icon.pngA familiar fly that moves in a straight line and attaches itself to the first obstacle or wall it comes into contact with in each room. If any enemies walk into its path, it will deal 7 contact damage per tick. If the obstacle it is attached to is destroyed then it will continue rolling in the direction it was previously travelling until it meets another wall or obstacle.
Added in Afterbirth Obsessed Fan Obsessed Fan
Obsessed Fan Icon.pngA purple fly familiar that follows Isaac's movements on a 3 second delay and deals contact damage to enemies.
Added in Afterbirth Papa Fly Papa Fly
Papa Fly Icon.pngA blue fly familiar follows Isaac's movements on a 3 second delay. Papa Fly will fire tears at nearby enemies.
Added in Afterbirth Jar of Flies Jar of Flies
Jar of Flies Icon.pngUnlimitedEvery time Isaac kills an enemy, a fly will be added to the jar, up to a maximum of 20. Using the Jar of Flies will release all the flies that are currently in the jar as friendly blue flies that will damage enemies.
Added in Afterbirth † Angry Fly Angry Fly
Angry Fly Icon.pngSpawns a fly familiar that orbits around a random enemy and deals 5 damage per tick to enemies it comes in contact with.
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