Enter "MSTSRVV" as a password.
Enter "LVFRVR" as a password.
Enter "LTSFBLLTS" as a password.
Enter "PLVRZM" as a password.
Enter "CRSTLCLR" as a password.
Enter "LTSLTSGNGS" as a password.
Enter "WMNRSMRTR" as a password. Then the all-women Storm Ravens game, with laser and cloak power-up will be selectable.
Enter "FRGZ" as a password.
Enter "TDZ" as a password to replace the Queen Lords with toads.
Enter "CDPLT" as a password.
Enter "CNCTHRTM" as a password.
Enter "HVRL" as a password.
While playing a game, hold C-Left + C-Right + C-Up + C-Down.
Begin a game in multi-player mode and collect at least 15 of one weapon, except for grenades. Aim at an opponent, then press A + B to fire a powered-up version of that weapon.
Enter one of the following passwords to start at the corresponding level with the Nuclear Knights gang:
| Level | Name | Password |
| 1 | Ground Zero | FRHBMCTNTK |
| 2 | The Tunnel | LHTSPMFRGS |
| 3 | Times Square | NGLFFPTTFP |
| 4 | Strangle Hold Bridge | SHPPNRVWGB |
| 5 | Bonus | MRFFCRTKP |
| 6 | Heartland | LPGCVBBJCF |
| 7 | Lake Shore Drive | GLWHJCRNLK |
| 8 | State St. | KMKJTMHRNS |
| 9 | Bonus | FLWWFCWNRK |
| 10 | Armageddon Highway | WSMBCPVRWS |
| 11 | Area 51 | CGJWVRGLNM |
| 12 | Fremont St. | KVVLHFHWTB |
| 13 | Bonus | FCLPJRWTMP |
| 14 | Crimson Gate | TMFNJMKJGF |
| 15 | Wharf | PPJLJHRCVV |
| 16 | Bonus | LNKNSWKGTH |
| 17 | Q-Zone | WMNRSMRTR |
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Game Shark Codes
Invincible
80135763 0001
Infinite Lives
80135772 0001
Infinite Ammo
80135760 0001
Invisible
8013576A 0001
All Weapons
80135765 0001
All Levels Unlocked
80135767 0001
All Gangs in Campaign Mode
8012579A 0001
Storm Ravens Gang Unlocked
80135773 0001
Frog Mode
80135775 0001
Toad Mode
80135776 0001
Story Mode
80135770 0001
Psychedelic View
80135771 0001
Spinning View
8013576B 0001
