Press P to pause the game, then enter the code. 

ghost - Disable collisions
hitme - Aggressive CPU drivers
bouncy - Bouncy suspensions & track boundaries
moon - Low gravity
heavy - High gravity 
slippery - Good traction sticky/Bad traction
turbo - 2X speed
war - Unlimited bottle rockets
bugoff - No track hazards

Note: Some codes require the latest patch for the game.


by unknown