Xenosaga: Episode 1
Hold L1 + L2 + R1 + R2 + Start + Select during game play.
Whenever you are viewing a previously watched scene, press Start then press
Triangle. You will then skip the entire scene until you are in quest mode
Pause game play and you will be prompted if you want to resume or skip the
scene. This is useful when you have saved a game before a scene and get killed
Moving quickly and silently:
Tap R2 rapidly when walking around to can hover quickly without making a sound.