BattleTanx [N64]

Invincibility
Go to input code on the main menu and put in HppyHppy.

Level Passwords
01 - Ground Zero FRHBMCTNTK
02 - The Tunnel LHTSPMFRGS
03 - Times Square NGLFFPTTFP
04 - Strangle Hold Bridge SHPPNRVWGB
05 - Bonus MRFFCRTKP
06 - Heartland LPGCVBBJCF
07 - Lake Shore Drive GLWHJCRNLK
08 - State St. KMKJTMHRNS
09 - 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

All gangs in campaign mode
Enter "LTSLTSGNGS" as a password.

All Weapons
Go to main menu. Then, go to input code and put in RCKTSRDGLR.

Multi-player weapons power-up
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.

Nuggets of Wisdom
Make your way to the Truck Stop level. Get guided missles and go back to where you started. Shoot a guided missle and to your left, there should be a car. Hit it and there you go! Some messeges scroll at the bottem of the screen.

Passwords
LTSLTSGNGS All gangs in campaign mode
WMNRSMRTR Storm Ravens gang
MSTSRVV Invincibility
FRGZ Frog mode
TDZ Toad gang
HVRL Spinning mode
CRSTLCLR Invisible Tanks
CNCTHRTM Trippy mode
LTSFBLLTS Unlimited ammo
LVFRVR Unlimited lives
CDPLT Run Story mode
PLVRZM All weapons

Storm Ravens gang
Enter "WMNRSMRTR" as a password. Then the all-women Storm Ravens game, with laser and cloak power-up will be selectable.

Suicide
Hold C-Left +C-Right + C-Up + C-Down