Pac-Man: Pac-Attack game:
Choose Pac-Man at the games screen. Get over 25,000 points during the game to unlock Pac-Attack at the games screen.

Ms. Pac-Man: Pac-Mania game:
Choose Ms. Pac-Man at the games screen. Get over 20,000 points during game to unlock Pac-Mania at the games screen.

Galaga Arrangement: Display game time:
At the Galaga Arrangement title screen press Left, Right, Left, Right, Up, Down, Up, Down.