On the Galaga Arrangement title screen, press LEFT, RIGHT, LEFT, RIGHT, UP, DOWN, UP, DOWN.

Pac-Mania is a locked game. To unlock it, you have to score 20,000 points or more in Ms. Pac-Man. If you succeed, you'll be able to select Pac-Mania from the Main Menu. Be sure to save high scores to a memory card.

Pac-Attack is a locked game. To unlock it, you have to score 25,000 points or more in Pac-Man. If you succeed, you'll be able to select Pac-Attack from the Main Menu. Be sure to save your High Scores/Options to a memory card (ps2) so it will remain unlocked when you load High Scores/ Options the next time you play.