Set the Saturn's internal date to January 1. Your batterysaver will be set to 99 instead of 64. George's gun will be charged when it is found and will now hold three shots.
Set the Saturn's internal date to December 25. A hidden message will be displayed as the game loads.
Complete the game at the normal difficulty level and start a new game under the hard difficulty level. Press A when reaching Laura's room to view a shower scene.