Shoot paintballs
Press Up, Down, Left, Right, R1, Up(2) at the "Race Day" screen in single race or head-to-head mode. Use your horn (press Up) to shoot a paintball. As an alternative, select practice mode and press Up, Down, Left, Right, R1, Down(2) to enable paintballs.

Wire frame cars
From MAIN MENU, press Up, Down, Left, Right, R1, Right, Left.

Mini cars
From MAIN MENU, press Up, Down, Left, Right, R1, Down, Up.

View credits
From MAIN MENU, press Up, Down, Left, Right, R1, Up(2).

High suspension
From MAIN MENU, press Up, Down, Left, Right, R1, Left, Right.

Hardcore realism mode
From MAIN MENU, press Up, Down, Left, Right, R1, Up, Down. Alternatively, get a 100 point rating on a track to unlock the hardcore realism mode option for that track.

Race as Richard Petty
Complete all Heat challenges with a bronze or higher rating to unlock Richard Petty.

Game Shark Code List

Master Code (Must Be On)	ECB359B4 1456E60A
2000 Points Driver 1	4CBA9F5C 1456E8F54CBB073C 1456E8F5