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Font TeamMeat B.pngFont TeamMeat F.pngFont TeamMeat F.pngFont TeamMeat S.pngFont TeamMeat emark.png
Item icon
Item altar
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Character appearance
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Shop Shop
Greed mode only Shop Shop
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Added in Afterbirth(page 3, column 3, row 1)
Removed in Afterbirth(page 3, column 3, row 5)

BFFS! is a passive item.

Effects[edit | edit source]

  • Increases the size of all familiars, and improves the effectiveness of most of them.
    • Doubles the damage of Familiars that deal damage through tears and contact damage.
      • Only affects familiars that deal a set amount of damage. Has no effect on most familiars that scale with Isaac's damage.
      • Has no effect on Creep generated by familiars.
    • For pickup-generating familiars, increases the frequency that they drop pickups.
    • Other familiars can be affected in subtle ways.

Notes[edit | edit source]

  • The size change is only cosmetic: familiars' hitbox for blocking damage or attacking is not affected.
  • Familiars summoned by a trinket or by Monster Manual Monster Manual are also affected by BFFS!.
  • The Blue Flies and Blue Spiders benefit from Hive Mind Hive Mind instead.
  • Does not increase the frequency or effectiveness of Status Effects applied by familiars.

Synergies[edit | edit source]

  • BBF BBF/Bob's Brain Bob's Brain: Doubles impact damage and increases explosive damage by 25.
  • Added in AfterbirthIncubus Incubus/Added in AfterbirthFate's Reward Fate's Reward: Deals double Isaac's damage instead of copying it.
  • Juicy Sack Juicy Sack: Spawns an extra Blue Spider.
  • Orbitals: The damage is doubled as expected, but the hitbox for orbitals does not increase for additional protection or reach.
  • Added in Afterbirth †Lil Spewer Lil Spewer: Increases the creep pool's size, but not its damage.
  • Added in Afterbirth †Mystery Egg Mystery Egg: Spawns a champion variant of the enemy, even if the enemy can't normally be a champion.

Interactions[edit | edit source]

  • Added in AfterbirthEvil Eye Evil Eye: The eyes are not treated as familiars and therefore will not synergize with BFFS!
  • Scissors Scissors: Doesn't change the head's size, but improves its damage.
  • Added in Afterbirth †Shade Shade: Retains the increased damage even after being absorbed.

No Effect[edit | edit source]

The following familiars will appear larger, but gain no actual benefits.

In-game Footage[edit | edit source]

Trivia[edit | edit source]

  • BFF stands for Best Friends Forever.
  • This item is used in The Family Man (challenge #19).

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