1. If you use the flamethrower, you don't have to get along the sides of the Rhino to kill it. It's front armor is invincible to anything except the flamethrower.
2. Lay a lot of gun buddies down so when the Rhino tries to kill you or the gun buddies, one of you will get a clear shot.
3. Use the cloaking to make yourself invisible and you should be able to get around him without him knowing where you are.
4. Fire a guided missile and guide it around the Rhino for a clear shot
5. (submitted by: ConoManno) Be the FLP-E & then use your side step to quickly run around his defense.
All weapons
Enter "RCKTSRDGLR" as a code.
Brandon gang
Enter "NNKNHCKS" as a code.
Custom Gang in Multiplayer
To access the M2 Hydra tank in multiplayer, enter the passcode TRDDYBRRKS.
Invincibility
Enter "HPPYHPPY" as a code.
Invincible
Put in the code MSTSRVV
Nuggets of Wisdom
To get some nuggets of wisdom from the Battle Tanx team, first make your way to the Arizona truck stop. It's about the third stage in one player mode. Get some guided missiles and go back to about where you started the stage. Control a guided missile to the dessert that should be to your left. You should see a white car, hit it. There you go! Little mesages should scroll at the bottom of the screen.
Passwords
To play on a particular level, highlight "Input Code" at the Options screen and enter its corresponding password.