Hero 300 mode:
To unlock Hero 300 mode, complete Knight 30 mode.
Hero 3 mode:To unlock Hero 3 mode, complete Hero 300 mode.
Knight 30 mode:
To unlock Knight 30 mode, complete Hero 30, Demon King 30, and Princess 30 modes.
Music player:
To unlock the music player, complete Hero 3 mode. Press Select to access the music player.