Binding of Isaac: Rebirth Wiki

(in Repentance)

Brimstone Bombs is an unlockable passive item added in The Binding of Isaac: Repentance.

Effects[ | ]

  • Gives Isaac +5 BombBombs.
  • Upon exploding, Isaac's bombs fire 4 Collectible Brimstone iconBrimstone lasers in the cardinal directions.
    • Each laser deals 8 damage per tick, and can hit up to 19 times.
    • Multiple lasers cannot hit the same enemy simultaneously.
    • The lasers cannot damage Isaac.

Notes[ | ]

  • The lasers created by Brimstone Bombs can push other bombs, including Troll BombTroll Bombs and bombs placed by Isaac.

Synergies[ | ]

  • Collectible BBF iconBBF / Collectible Bob's Brain iconBob's Brain: Inherits the effect in full, firing lasers every time they explode.
  • Collectible Dr. Fetus iconDr. Fetus / Collectible Epic Fetus iconEpic Fetus: Attacks have a small chance to trigger this effect. Chance goes up to 100% at 30 luck.
  • Collectible Hemoptysis iconHemoptysis: Enemies hit by the sneeze will gain a curse that increases the damage the Brimstone lasers deal to 19 damage per tick. Enemies who die to the Brimstone lasers under the curse will damage and spread the curse to nearby enemies.
  • GuppyGuppy / Collectible The Mulligan iconThe Mulligan: The lasers can create Blue Flies when they deal damage.
  • Collectible Kamikaze! iconKamikaze!: Activating Kamikaze! sends Brimstone lasers in all 4 directions.
  • Red Locusts / Collectible Scatter Bombs iconScatter Bombs: Explosions made by the red locusts and tiny bombs create thinner lasers that deal 4.8 damage per tick instead of 8.
  • Collectible Multidimensional Baby iconMultidimensional Baby: Placing Multidimensional Baby in front of the beam will transform it into two black-and-white beams.

Interactions[ | ]

  • Collectible Bomber Boy iconBomber Boy: Only the center explosion will fire lasers.
  • Collectible Anarchist Cookbook iconAnarchist Cookbook: The lasers fired by the troll bombs will push other troll bombs around, likely to the edges of the room.

In-game footage[ | ]