BattleTanx: Global Assault Codes -

Level select:
Enter 8ODYS as a code.

Invincibility:
Enter HPPYHPPY as a code.

All weapons:
Enter RCKTSRDGLR as a code.

Campaign mode bonus level:
Enter WRDRB as a code to unlock the Boat Assault secret level after campaign mode is completed.

Custom 1 gang:
Enter TRDDYBRRKS as a code to unlock the Custom 1 gang (M2 Hydra tank ) in multi-player mode.

Brandon's gang:
Enter NNKNHCKS as a code.

Suicide:
Press C-Up + C-Down + C-Left + C-Right during game play. This is especially useful if you have selected the wrong tank with the invincibility code activated.

Hint: Multi-player weapons power-up:
Begin game play in multi-player mode and collect at least fifteen of one weapon, except for grenades. Aim at an opponent, then press A + B + Z to fire a powered-up version of that weapon.

Press A + B at the same time to unleash powered-up versions of weapons in single player mode. In order to do this trick you must have fifteen of that type of weapon. Note: Press Z when guided missiles are under your control to fire a blue laser.