Key Piece 2
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Key Piece 2 is an unlockable passive item.
Effect
- Combined with
Key Piece 1, unlocks the golden gate in the starting room of 
Chest and 
Dark Room to fight 
Mega Satan. - Increases the chance of finding an
Angel Room. - Grants a 2.5% chance of converting
Red Heart pickups into 
Eternal Hearts.
- This effect stacks with Key Piece 1.
- This effect stacks with
Notes
- This item is a guaranteed drop from
Gabriel if not already in possession. - This item, along with Key Piece 1, can be rerolled into any item from the Angel Room pool.
- This item also counts as a familiar, meaning it takes up a familiar slot.
- Unlocking the Golden Gate with the combined key pieces and then restarting the floor with
Forget Me Now or an 
I AM ERROR room will waste the key, which will not respawn. - Will not be rerolled by
D4, 
D100, or 
Dice Room effects. - Will not be doubled by
Box of Friends 
Familiars that follow behind Isaac have a certain priority in how close their position is to him over other familiars, with Key Piece 2 having the lowest priority at 6th and thus being farther from Isaac than familiars of different priorities.
In-game Footage
Unlockable achievements
The Family Man - Pick up both Key Pieces from the Angels in one run.
Trivia
- This item is used in I RULE! (challenge #26) and
Ultra Hard (challenge #34). - Key Piece 2 is tied with Key Piece 1 and
Card Reading for the item with the most item tags at 6.
Keys
