Binding of Isaac: Rebirth Wiki

Spider Butt is an activated item.


  • Deals 10 damage to all enemies in the room and slows them for 4 seconds.
  • Added in Repentance Enemies killed by Spider Butt spawn 1-3 Blue Spiders.
  • Added in Afterbirth † This item belongs to the Spider Baby set. Collecting three items from this set will transform Isaac into a humanoid spider.


  • Added in RepentanceBook of Virtues Book of Virtues: Spawns white wisps in the middle ring, looking like a spider. Wisps' tears have a 7.5% chance to inflict slow on enemies.


  • Added in AfterbirthCar Battery Car Battery: Deals 10 damage to enemies twice but does not increase slow effect.

In-game Footage[]




PC AXS3 MFXW (Treasure room adjacent to spawn)

PC SQ24 649V (Treasure room adjacent to spawn)

PC QQBA 0WRZ (Treasure room adjacent to spawn)

PS4 GZ4N DSHW (Treasure room adjacent to spawn)

Vita MBRQ KTT3 (Treasure room adjacent to spawn)

PC 2VXS 0S4B (Treasure room adjacent to spawn) (normal mode only)