Cheat Codes:

Hardcore realism mode - At the main menu, press Up, Down, Left, Right, White, Up, Down. Alternately, get a 100 point rating on a track to unlock the hardcore realism mode option for that track.
Shoot paintballs - At the "Race Day" screen in single race or head-to-head mode, press Up, Down, Left, Right, White, Up(2). Use your horn (press Up) to shoot a paintball. Alternately, select practice mode and press Up, Down, Left, Right, White, Down(2) to enable paintballs.

High suspension - At the main menu, press Up, Down, Left, Right, White, Left, Right.

Mini cars - At the main menu, press Up, Down, Left, Right, White, Down, Up.

Wire frame cars - At the main menu, press Up, Down, Left, Right, White, Right, Left.

View credits - At the main menu, press Up, Down, Left, Right, White, Left(2).

Race as Richard Petty - Successfully complete all heat challenges with a bronze or higher rating to unlock Richard Petty.

Game Shark:
There are currently no Game Shark codes available.