Unlock the following option in the "Extra" menu by performing the corresponding tasks:
OPTION - HOW TO UNLOCK Art Gallery - Complete the game. This option allows all unlocked game art to be viewed. Bestiary - Complete the game. This option displays information all each type of monster that you have defeated. Music Player - Complete the game. This option allows all songs from the game to be replayed. Time Chamber - Complete the Labyrinth of Time. This options allows you to replay any completed floor from the Labyrinth of Time.