Zombies Ate My Neighbors
Contributed by - Richard

Sound test:
Press L or R at the Lucas Arts logo. 

Cheerleaders vs. The Monsters bonus level:
Enter WBGR as a password to begin game play on level 9 with all ten
victims. Rescue all victims on each stage up until level 12 (Mars
Needs Cheerleaders) to reach the "Cheerleaders vs. The Monsters" bonus
level.

Bonus level:
Enter BCDF or GYLM as a password. 

View end credits:
Enter XWJR as a password.