Binding of Isaac: Rebirth Wiki

Hive Mind is a passive item.


  • Increases the size and doubles the damage of Blue Spiders, Blue Flies and Added in Afterbirth † Locusts.
  • Added in Repentance Fly and spider familiars become stronger, exactly like BFFS! BFFS!.
    • Having both Hive Mind and BFFS! gives no further benefit.
  • This item belongs to the Beelzebub set. Collecting three items from this set will transform Isaac into a giant humanoid fly.
  • Added in RepentanceThis item belongs to the Spider Baby set. Collecting three items from this set will transform Isaac into a humanoid spider.


  • Red Locusts' explosions will deal an additional 25 flat damage.
  • Removed in Repentance This item does not affect Fly familiars or orbitals.
  • No effect on flies made passive by Skatole Skatole.


  • Guppy: Doubles the damage of all of Blue Flies, greatly increasing damage output.
  • Added in Afterbirth †Brown Nugget Brown Nugget: Turret does 7 damage instead of 3.5
  • Mom's Wig Mom's Wig: Doubles spider limit of the wig to 10 spiders.
  • Sissy Longlegs Sissy Longlegs: Increases familiar's size. Spiders spawned by Sissy are affected by Hive Mind.

In-game Footage[]


  • Hive mind is the concept of a large number of beings acting in the interest of the survival of the group as a whole, with little to no individuality.
  • Added in Repentance This item is one of the only five that count towards 2 transformations, the other four being Skatole Skatole, The Bible The Bible, Magic Mushroom Magic Mushroom and Added in Afterbirth †Parasitoid Parasitoid.