Binding of Isaac: Rebirth Wiki

(in Afterbirth † and Repentance)

Hairpin is an unlockable trinket added in The Binding of Isaac: Afterbirth † (Booster Pack #1).

Effects[ | ]

  • Fully recharges Isaac's active item upon entering an unexplored Boss RoomBoss Room.
    • This effect only occurs the first time a Boss Room is entered; leaving and re-entering the Boss Room will not result in more recharges.

Notes[ | ]

  • If there are multiple Boss rooms on the same floor (Curse of the LabyrinthCurse of the Labyrinth, The VoidThe Void), the trinket's effect will trigger once for each and every Boss Room.
  • In Greed Mode, grants a full charge only for the two boss fights on the final level.
    • (in Repentance) Cannot appear in Greed Mode, though will function the same if accessed through the Debug Console.
  • (in Repentance) Recharges twice on CorpseCorpse II: 1st time happens when entering the boss room, 2nd time happens when entering the Boss Mother secondphase ingameMother fight.
  • (in Repentance) Does not fully recharge between Boss Dogma ingameDogma and Boss The Beast ingameThe Beast.

Synergies[ | ]

Interactions[ | ]

  • Collectible The Battery iconThe Battery: If the item doesn't have a full first charge level, it will be filled. If the first level is full, the second charge level will be filled.
    • (in Repentance) The item will gain both its charges.
  • Collectible Mega Blast iconMega Blast: Mega Blast gains only 3 charge units, unlike all other 12 room recharge items, who are fully charged.

In-game Footage[ | ]

Gallery[ | ]

Trivia[ | ]

  • Hairpin is based on this Steam Workshop trinket by
  • Hairpin's original description was "Poke that power outlet! Bosses charge you".