Binding of Isaac: Rebirth Wiki

Mutant Spider is a passive item.

Effects[]

  • Isaac fires 4 tears at the same time.
  • (except in Repentance) Tears down: (Delay * 2.1) + 3.
  • (in Repentance) Tears fired per second * 0.42.
  • (in Afterbirth † and Repentance) This item belongs to the Spider BabySpider Baby set. Collecting three items from this set will transform Isaac into a humanoid spider.

Notes[]

Synergies[]

  • (in Afterbirth †) 20/20: Shoots 6 tears.
    • (in Repentance) Removes the fire rate penalty while reducing damage to 80%. Additional copies will add one additional tear with no further change to damage/fire rate.
  • (in Repentance) Abyss: When Isaac uses Abyss to absorb Mutant Spider it creates four locusts instead of one.
  • Brimstone: Shoots 4 beams at once.
  • (except in Repentance) Cursed Eye: Shoots 4 shots out of each eye, for a total of 16 tears when fully charged.
  • Doctor's Remote/Epic Fetus: Replaces the single missile strike with a barrage of four consecutive missiles.
  • (in Afterbirth and Afterbirth †) The Inner Eye: Shoots 7 tears with no further decrease in fire rate.
    • (in Repentance) Shoots 5 tears with no further decrease in fire rate.
  • Monstro's Lung: Adds 7 tears to the barrage with a significant decrease in fire rate.
  • (in Afterbirth and Afterbirth †) Mutant Spider: Fires 8 tears with no further decrease in fire rate.
    • (in Repentance) Each copy of the item adds +2 tears, up to the maximum of 16.
  • Polyphemus: Tear rate is not lowered further. Damage is increased by a flat +5 instead of normal Polyphemus boost.
  • (except in Rebirth) Tractor Beam: All tears are fired along the beam.
  • (except in Repentance) The Wiz: Four shots are fired in each direction.
    • (in Repentance) : Three shots are fired in each direction.

Interactions[]

In-game Footage[]

Trivia[]

  • It might be a nod to Spiderman and the general trope of gaining superpowers by being bitten by a radiative animal.
  • This item is often called "Quad Shot" by the community instead of Mutant Spider. It shares this with Dead Cat, which is popularly called 9 Lives.