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(in Repentance)

Tuff Twins is a boss added in The Binding of Isaac: Repentance that can appear in the MinesMines.

Behavior[ | ]

Tuff Twins always spawn in a pair consisting of 5 body segments and a head segment each. They are always fought in a double-sized room.

  • The Tuff Twins roam around the room randomly, like Boss Larry Jr. ingameLarry Jr.
  • Normally invincible, but bombs and explosives can destroy their stony exteriors (after 15 damage per segment), making their segments vulnerable.
  • Head segments spit InkInks while protected by its rock armor.
    • Vulnerable head segments spit SuckerSuckers instead.
  • Vulnerable body segments spew bloody shots, similar to BoilBoils.
    • When a flesh segment is killed it spews blood shots.
  • Tuff Twin segments can be split into smaller copies of the boss as long as the new Tuff Twin segments are longer than 2 pieces.
  • The Tuff Twins become faster the more rock armor they lose.

Gallery[ | ]

Notes[ | ]

  • Collectible Terra iconTerra, along with any items that create rock waves like Collectible Mega Bean iconMega Bean and Collectible Wait What iconWait What? can destroy the Tuff Twins' armor.
  • Neither Collectible Fire Mind iconFire Mind explosions nor Collectible Sulfuric Acid iconSulfuric Acid tears can destroy their armor.
  • Killing all the Bomb Grimaces with effects like Collectible Little Horn iconLittle Horn and Collectible Euthanasia iconEuthanasia can soft-lock Isaac in this fight.
  • Collectible Plan C iconPlan C cannot kill the Tuff Twins if they still have their armor. (Possibly a bug?)

Bugs[ | ]

Bug Bug! The Tuff Twins can get stuck with the Bomb Grimace in the room.

Trivia[ | ]

  • They appear to be a rocky variation of Larry Jr.
  • Boss The Shell ingameThe Shell appears to be the posthumous version of them.
  • Tuff is the name of a type of rock formed from volcanic ash.


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