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Hairpin is an unlockable trinket added in The Binding of Isaac: Afterbirth † (Booster Pack #1).
Effects[]
- Fully recharges Isaac's active item upon entering a boss fight.
- 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[]
- The trinket's effect will trigger once for each and every Boss Room. Even if there are multiple Boss rooms on the same floor for whatever reason (
Curse of the Labyrinth,
The Void)
- In Greed Mode, grants a full charge only for the two boss fights on the final level.
- The effect is identical to picking up a
Lil' Battery, with caveats listed in interactions.
Recharges twice on
Corpse II: 1st time happens when entering the boss room, 2nd time happens when entering the
Mother fight.
Does not fully recharge between
Dogma and
The Beast.
Interactions[]
The 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.
The item will gain both its charges.
Mega Blast: Mega Blast gains only 3 charge units.
In-game Footage[]
Gallery[]
Hairpin's original appearance prior to Booster Pack #4.
Hairpin's appearance prior to Booster Pack #5.
Trivia[]
- Hairpin is based on this Steam Workshop trinket by zarat.us.
- Hairpin's original description was "Poke that power outlet! Bosses charge you".