Binding of Isaac: Rebirth Wiki
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Binding of Isaac: Rebirth Wiki

Mom's Key is a passive item.

Effects[]

  • Gives Isaac two keys.
  • If a non-Red Chest spawns hearts, coins, bombs and/or keys, causes the chest to spawn a second group of said pickups, effectively doubling the average pickup yield.
  • Added in Afterbirth This item belongs to the Yes Mother? set. Collecting three items from this set will transform Isaac into his mother.

Notes[]

  • Mom's Key cannot change the contents of a chest; it will only cause it to spawn extra pickups.
  • All other chest rewards (such as pills, cards, items, etc.) will not cause the chest to spawn additional pickups.
  • Added in Repentance Does not affect Old Chests.

In-game Footage[]

Trivia[]

  • Mom's Key is the first item, by ID number, that was not carried over from Wrath of the Lamb.
  • The appearance of Mom's Key is a reference to Bowser's boss key in Super Mario 64 as well as the Boss Key in various Legend of Zelda games.
  • Removed in Repentance Prior to Repentance, this item's description was "Less is now more +2 keys".


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