Unlimited Shields and Turbo's
     At the Main Menu, press L1 + R1, L2 + R2, L1 + L2, R1 + R2.

Enable Double Prize Money
     At the Main Menu, press L1 + L2, R2 + R1, R1 + R2, L2 + L1.

Infinite Ammo
     At the Main Menu, press L2 + R2, L1 + R1, L2 + R2, L1 + R1.

Team Cheat (Unlock StarCom)
     At the Team Select screen, press L2, R2, L1, R1, L2 + R2, L1 + R1.

All Tracks
     At the Main Menu, press L1, L1, L2, L2, R2, R2, R1, R1, L1 + R1 +
L2 + R2.