Keys

Keys are used to gain entry to many of the game's rooms, as well as open Locked Chests and Key Blocks.

Key	ID	Worth	Additional Info	Unlock Method
Key	5.30.1	1	Error: The given collectible ("Humbling Bundle") does not exist. and Equality! can replace this with a Key Ring.
Key Ring	5.30.3	2	Doesn't spawn naturally. Can only be found by using certain items or encountering certain rooms.
Golden Key	5.30.2	0	Will not add to the player's key count, but when picked up, it will allow the player to use keys on anything that requires them without subtracting from their total for the duration of the current floor, even if the current number of keys is 0. There is a 1/50 chance for any given key pickup to be a golden key.
Charged Key	5.30.4	1	Acts as a Lil' Battery when picked up. Key Bum will pick this up, but will not give Isaac any active charge. Key Bum will drop a Lil' Battery when picking the key up.	Complete Pokey Mans (challenge #33)

Trivia

Booster Pack #5 added an electrical graphical effect to Charged Keys.
- Charged Keys start sparkling as soon as they spawn, helping players distinguish them from normal keys and prevent wasting charges.

Bug!	Charged Keys do not increment Key Bum's key count when picked up.