Sin And Punishment: Successor To The Earth Music test: Successfully complete the game under the easy difficulty setting to unlock the "Music Test" option at the configuration screen. Hard difficulty: Successfully complete the game under the normal difficulty setting. Toggle subtitles: Successfully complete the game under the normal difficulty setting. An option to toggle Japanese subtitles during the intermission sequences will be unlocked at the configuration screen. Frame skip: Successfully complete the game under the hard difficulty setting to unlock the "Frame Skip" option at the configuration screen. Enabling this option will reduce slowdown during the game. Game speed: Successfully complete the game under the hard difficulty setting to unlock the "Game Speed" option at the configuration screen. Set this to ''Turbo'' to play at double speed.