To use these cheat codes, type them in during a race (except the MONEY code, 
which must be typed while in the Upgrade menu). If you pause the game by hitting 
P, you can type in the cheats while the game is paused. Typing SLIPPERY, of 
course, will unpause and then pause the game again, so try to type it fast. 
Another good time to enter a code is after the loading screen, just before the 
track announcer shouts, "Go!"

bouncy-Extra springy vehicles and track boundaries 
ghost-All "ghosted" vehicles (no collisions) 
heavy-Increased gravity 
hitme-Aggressive computer drivers 
moon-Reduced gravity 
money-$200 - See instructions below 
sticky-Increased traction for all cars 
slippery-Loss of traction, like driving on ice 
turbo-Double your normal car speed 
war-Unlimited Bottle Rockets for everyone

Money Cheat Instructions

Unlike the other cheat codes, your name must be "i cheat" and MONEY must be 
entered while you are in the Upgrade menu). Save the file then start the game.