Enter message mode pressing \, then type "!when all else fails..." (include ...) to enable cheat mode. Next, enter one of the codes below to activate a cheat.

Code - Effect

!patton's speach - You've inspired your troops
!i give up - Restart Level
!veni vidi vinci - Skip Level
!fond memories - ???
!night of the walking dead - Enemies turn in to zombies
!suicide kings - Kill sarge
!ninja arts - Sarge has stealth ability and is faster
!god of gamblers - Random item, sometimes infinite
!techno - ??
!rubber cement ??
!paper dolls - Parachuter's
!watchtower in the sky - Recon
!geronimo! - 12 air strikes
!beautiful nikita - Infinite sniper rifel
!fourth of july - M80
!roach spray - Infinite Can "o" fire
!ruby ray - Infinite magnifying glass
!aluminum foil - Flak jacket
!smorfs - Blue uniform
!metal sheeting - Grey Uniform
!shrink wrap - Tan uniform
!pooper scooper - Mine sweeper
!gnomish inventions - Explosives
!acme discs - Land mines
!a better tomorrow - ??something happens to your gun??
!no rocket launcher - Infinite rocket launcher
!village people - Infinite flamethrower
!i have a rock - Infinite handgranads
!cliche ending - ??
!phoenix! - Flame man
!surprise party - A lot of enemies apear from nowhere
!armageddon - Everthing dies in a mass air strike
!ucla - ??Go Bruins??
!doctor doctor - Full Health
!moleman - ??
!spidey senses tingling - See all enemies on the map
!jumpjets - Teleports Sarge somewhere close by
!warp 6 - ??
!santini - Invincible

Full Air Support
Press Backspace, type aerosmith, then press Enter.

Level Skip
Press Backspace, type LevelSkip xx, where xx is 1-20, then press Enter.

Full Ammo
Press Backspace, type full tank, then press Enter.