All Cars  Enter GANGS_UNLOCKED as a password for all cars. (Note, this does not unlock the UFO.)  (Thanks to LWargalla@t-online.de)

All Characters and Levels  Enter JTBT7CFD1LRMGW as a password.  (Thanks to LWargalla@t-online.de)

Expert Mode  Enter I_AM_TOUGH_GUY as a password.  (Thanks to LWargalla@t-online.de)

Invincibility  Enter LIVING_FOREVER as a password.  (Thanks to LWargalla@t-online.de)

Level Select  Enter LEVEL_SHORTCUT as a password.  (Thanks to LWargalla@t-online.de)

Low Gravity  Enter A_MOON_GETAWAY as a password.  (Thanks to LWargalla@t-online.de)

Missle Power-up  Enter MISSLE_ATTACK as a password.  (Thanks to LWargalla@t-online.de)

No Enemies  Enter POPULATION_OUT as a password.  (Thanks to LWargalla@t-online.de)

Quick Firing Weapons  Enter FIRE_NO_LIMITS as a password.  (Thanks to LWargalla@t-online.de)

Same Vehicle in Multi-player Mode  Enter MIX_MATCH_CARS as a password.  (Thanks to LWargalla@t-online.de)

Slow Motion Mode  Enter GO_REALLY_SLOW as a password.  (Thanks to LWargalla@t-online.de)

Special Weapons  Enter the following actions during gameplay to activate the special attack of the indicated weapon.  Note: The required weapon must be in your inventory, but does not need to be active.  (Thanks to LWargalla@t-online.de)

Weapon	Code
Interceptor Missiles(Halo Decoy)	Up(2), Down, then shoot the machine gun to cause your opponent's homing missiles or special attacks to follow your missiles.
Interceptor Missiles(Turbo)	Up(3) then shoot the machine gun to speed up for a few seconds.
Bull's Eye Rockets(Stampede)	Up, Down, Up then shoot the machine gun to rapidly fire mulitiple non-homing rockets
Bull's Eye Rockets(Boost Rocket)	Up, Down, Up, then shoot the machine gun.  If an opponent is hit, he or she is taken for a sky ride.
Sky Hammer Mortar(Turtle Turnover)	Down(3), then shoot the machine gun to flip your opponents' vehicles.
Sky Hammer Mortart(Crater Maker)	Press Down(2), Up, then shoot the machine gun to drop a mega bomb that will leave a crater.
Bruiser Cannon (Cow Puncher)	Press Down, Up, Down, then shoot the machine gun to punch opponent vehicles back.
Bruiser Cannon(Scatter Blast)	Press Down, Up(2), then shoot the machine gun to shoot six cannon shells simultaneously.
Roadkill Mines(Cactus Patch)	Press Left, Right, Up then shoot the machine gun to rapidly deploy a group of mines.
Roadkill Mines(Magnetic Mine)	Press Left, Right, Down, then shoot the machine gun to drop a mine that will attract nearby cars.

Ultra-high resolution mode  Enter MAX_RESOLUTION as a password.  (Thanks to LWargalla@t-online.de)

View Ending Sequences  Enter LONG_SLIDESHOW as a password.  (Thanks to LWargalla@t-online.de)

Y The Alien  Enter GIMME_DA_ALIEN as a password.  This character is normally unlocked after completing quest mode using all other characters.  (Thanks to LWargalla@t-online.de)