You can unlock Previews by beating the game under a certain ending. These Previews guide you along the path you should take to get the True ending.
Unlockable How to Unlock Preview A Clear the game with the Safe ending. Preview B Clear the game with the True ending or the Coffin ending.
Contributed By: Poltergust.
Replay rooms you have already cleared
You can unlock the feature to re-solve a room's puzzles after completing the game. After completing the game once, this feature will be unlocked.
Unlockable How to Unlock Memories of escape Complete the game for the first time
Contributed By: KoiNoDensetsu.
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