Press L or R at the Lucas Arts logo.
Enter BCDF or GYLM as a password.
Enter XWJR as a password.
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.
Level 2: PHZB
Level 4: XHRS
Level 5: FHRX
Level 6: PHRP
Level 8: WBGR
Level 9: NBGW
Level 12: GFCY
Level 13: FRCR
Level 16: KKYM
Level 17: RKYL
Level 19: DBJK
Level 20: BXBS
Level 21: PXBG
Level 24: GYLM
Level 25: XYLZ
Level 28: GLZJ
Level 29: XLZG
Level 32: XJQY
Level 33: WJQK
Level 36: KZVJ
Level 37: BZVG
Level 40: KRPY
Level 41: BRPK
Level 45: BLHR