| Effect | Password |
| Bird's-eye view | OLDSCHOOL |
| Five continues | WARRIOR |
| Fly mission 1 map without enemy fire | EAGLEEYE |
| Four continues | PHOENIX |
| Holes appear when shooting ground | DIG IT |
| No enemies during mission 1 | AVENGER |
| Overhead view | CROSSEYED |
| Reduced fuel consumption | MPG |
| Shockwave when shooting ground | SHARK BAIT or SURFIN |
| Shockwave with unlimited ammo | MAD BOMBER |
| Unlimited ammo | GUNSRUS |
| Unlimited armor | CHAINMAIL |
| Unlimited fuel | UNLEADED |
| Unlimited fuel, ammo, armor | CHEESYPOOF |
| Unknown | ONETWO |
| Unknown | APACHELITE |