Isaac Rebirth

Key Piece 1 is a passive collectible added in The Binding of Isaac: Rebirth. It is obtained by blowing up the angel statue in the Angel Room and defeating Uriel when he spawns.


When Key Piece 2 is also obtained, it unlocks the golden door in The Chest and The Dark Room that leads to the final boss Mega Satan. It also increases the chance of finding an Angel Room.

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