Broken Padlock

Effects

Doors that require a key, coin or a heart can be opened with explosions.
Does not work on (Challenge Room) Challenge Room doors (neither Normal Challenge Room, nor Boss Challenge Room)
- Does not work on the golden door that leads to Mega Satan or the flesh door to Mom's Heart in (Mausoleum) Mausoleum/(Gehenna) Gehenna.
- The door to the (Mausoleum) Mausoleum/(Gehenna) Gehenna can be entered with one bomb without the need to spend any hearts.
- The Strange Door can also be opened without the need to sacrifice (The Polaroid) The Polaroid / (The Negative) The Negative.
Chests can also be opened with an explosion.
- This includes all types of chests, including Mimic and Spiked Chests with the only exceptions being Haunted Chests and Mom's Chest.

Doors that require two keys ((Vault) Vault and (Dice Room) Dice Room) only require one bomb to open.
The trinket allows bombing through locked doors, such as (Treasure Room) Treasure Rooms and (Arcade) Arcades before the room has been cleared which is normally not possible.
- However, if the door has already been unlocked, this will not work.
Mega Chests require multiple explosions in order to be opened, just as when using keys.

(Options?) Options?: Bombing any chest spawned by Options?, including the ones not requiring keys, allows picking up the contents of the chest without the other reward disappearing, unless the empty chest is touched. This can be easily avoided by simply exiting and reentering the room.
(Sulfuric Acid) Sulfuric Acid / (Terra) Terra: Locked doors can be opened by shooting at them.

Blue Key: Doors opened via explosions will not spawn the corridor.
(Golden Trinket) Golden Trinket / (Mom's Box) Mom's Box: No effect.
(Pay to Play) Pay to Play: Doors can still be opened up normally via explosions.