The Simpsons: Hit & Run

At the Options menu, hold L + R, and press:
A, B, A, B  - All Reward Cars
X, X, X, X  - Fast Cars
Y, A, Y, A  - Invincible Car
Y, Y, Y, Y  - High Acceleration
X, X, X, Y  - Jump Car with Horn
Y, Y, X, X  - One Hit Kills
B, B, B, A  - All Cameras
A, X, X, Y  - Show Credits
Y, Y, B, X  - Show Speedometer
B, B, Y, X  - Red Brick Car
B, A, B, Y  - Grid Mode
Y, B, Y, B  - Trippy Mode

 