WRDRB           Bonus level (access by beating the campaign mode)
TRDDYBRRKS      Access "Custom 1" gang in multi-player
NNKNHCKS        Play as Brandon's gang
80DYS           Level select
HPPYHPPY        Invincibility  
RCKTSRDGLR      All weapons

Weapon Power-up:

During gameplay, press A+B at the same time to fire a modified blast. Similiar

to Battle Tanx but it doesn’t matter how many of that weapon you have. (Also

you can fire a laser with the Powered-up Guided Missle by pressing Z).

Suicide:

Press C-Up + C-Down + C-Left + C-Right during game play.

GameShark Codes

Infinite Tank Bucks    80236a9f0064 

Level Select           80117f490001 

Invulnerability        80125ab00001 

Start With All Weapons 80125ab10001 

Secret Level           80125ab20001 

Enable Models          80125ab30001 

Cassandra Gang         80125ab50001 

Brandon Gang           80125ab60001 

Mini-Tanks 1           80125ab80001 

Mini-Tanks 2           80125ab90001 

Mini-Tanks 3           80125aba0001 

Mini-Tanks 4           80125abb0001 

Mini-Tanks 5           80125abc0001 

Thanks to Revolution readers Guerrand, T.J., Ian, Alex Coltharp, fat bastard,

Sofa_King62, chris, Jason Swan, Carlos Cruz, shaneman, matt butler, Zach Abernathy,

Allen, Brian Wanta & Mike Hebert, ElGaso, Nick Morris, Alan Downie, Kris P.,

Pierce Brown, chris hudson, Chad Hartman, Willy Kretz, Rick Justice, and LiI

Paladin!