View completion amount
Quickly press [Right], [Circle], [Left],
[X], [Up], [Circle], [Down], [X] during
the opening sequence before the "Production IG" text
disappears. The amount of the game completed, in percent, will
appear on-screen.
In-game reset
Press [L1] + [L2] + [R1] + [R2]
during game play.
Replay mode
Successfully complete and save the game to unlock the
replay mode option. This mode allows the game to be viewed non-interactively
in a single sequence.
Omake mode
Successfully unlock each of the four good endings with
at least an 80% completed to unlock the omake mode option. This
mode allows various artwork from the game to be viewed.