Crooked Penny

Crooked Penny is an unlockable activated item added in Afterbirth †.

Effect

 * Upon use, has a 50% chance to double all items, pickups, and chests in the current room.
 * If the effect fails, the items, pickups, and chests disappear, and a penny is spawned.

Interactions

 * : Activates the item twice, quadrupling all items/drops in the room at a 25% chance. However, if the first activation fails, and the second activation succeeds, a copy of the item will be created as the original disappears, and the new copy will have no cost if it were in a Shop or Devil Room. This has a 25% chance as well, leaving the overall failure chance at 50% (a success followed by a fail will have the same effect as two fails).

Synergies
See Diplopia for info about stacking duplicate items.


 * : Using Void with Crooked Penny's effect will absorb all items in the room, with a 50% chance to drop a duplicate of them. Note that when one uses Void on Crooked Penny, Crooked Penny may be duplicated and Voided again. Through this method it is possible to gain multiple copies of Crooked Penny's effects, with each copy providing even better average returns per use.
 * : Glowing Hour Glass can be used to rewind failures. The Crooked Penny can then be used in another room instead, then recharged for another duplication attempt. Schoolbag is helpful for carrying both.

Trivia

 * This item's effect, if the coin flip succeeds, is almost identical to 's.
 * can be copied by this item.
 * Before the first Booster Pack, it could be used on empty item pedestals to cause another item to appear.

Seeds
ZGB7-YX8X (Adjacent to spawn, Treasure Room) C7LV-XHMV (Adjacent to spawn, Treasure Room)

Crooked Penny