Display game time in Galaga Arrangement:
Press Left, Right, Left, Right, Up, Down, Up, Down at the Galaga Arrangement title screen.
Pac-Attack mode:
Score 25,000 points or better in Pac-Man to unlock the Pacattack mode.
Pac-Mania mode:
Score 25,000 points or better in Mrs Pac-Man to unlock the Pac-Mania Mode.
Secret Bonus:
During Challange Stages on Galaga Arrangement, don't shoot any enemies to receive: Lucky! Secret Bonus 7650.