Enter "8ODYS" as a code.
Enter "HPPYHPPY" as a code.
Enter "RCKTSRDGLR" as a code.
Enter "WRDRB" as a code to unlock the Boat Assault secret level after campaign mode is completed.
Enter "NNKNHCKS" as a code.
Enter "TRDDYBRRKS" as a code to unlock the Custom 1 gang (M2 Hydra tank) in multi-player mode.
When you enter the "TRDDYBRRKS" code and "Custom Gang" appears at the bottom, you can actually type in letters and customize your own gangs. For example, if you enter "TRDDYBRRKS" and then enter "X", you get grenades, two Goliath tanks, 2 FLP-Es, and a Laser Tank. You can also type in various combinations to get various groups. For example, enter "SGG" for three Goliath tanks, an Inferno, and a Motortank.
Begin a game and collect at least fifteen of one weapon, except for grenades. Aim at an opponent, then press A + B to fire a powered-up version of that weapon. Note: Press A + B + Z when guided missiles are under your control to fire a blue laser.
While playing a game, press C-Up + C-Down + C-Left + C-Right. This is especially useful if you have selected the wrong tank with the invincibility code activated.
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Game Shark Codes
Level Select
80117F49 0001
Invincibility
80125AB0 0001
All Weapons
80125AB1 0001
Infinite Tank Bucks
80236A9F 0064
Secret Level
80125AB2 0001
Enable Models
80125AB3 0001
Cassandra Gang
80125AB5 0001
Brandon Gang
80125AB6 0001
Mini-Tanks 1
80125AB8 0001
Mini-Tanks 2
80125AB9 0001
Mini-Tanks 3
80125ABA 0001
Mini-Tanks 4
80125ABB 0001
Mini-Tanks 5
80125ABC 0001
Unknown
80125AB4 0001
