Powerslide

Powerslide cheat codes: 
Type in cheats while you are playing, and an icon will appear
in the top right of the screen.

APOLLO: Car rises off the ground when holding ALT key.
BLAST: Repels other cars.
BOMB: Launches a bomb from your car onto the track.
BURN: Briefly ignites a spot near your car.
GLIDER: When in the air, car controls like a glider.
HOVER: Cars hover.
ICBM: Car acts like a missile.
JUMP: Each time, jumps car several feet in the air.
LAUNCH: Hit "a" to launch a car, "z" to move in the direction
you're facing.
LIGHT: Lighter car.
LUNAR: Lunar gravity.
SLEEP: AI cars don't steer, they just accelerate.
SLIPPY: Slippery surfaces.
SPIDER: Car adheres to any surface.
STICKY: Stick surfaces.
SUCK: Cars gravitate towards each other.
TIMEWARP: Slows time for AI opponents.
TWISTER: AI cars get whipped around by an invisible tornado.
WARP: Other cars crawl over track.

While in the Sign-in Screen:

Type Jeff as your name - access Advanced Levels
Type AaronFoo as your name - access Expert Levels
Type Megasaxon as your name - access all levels/AIs