Set the game to Master difficulty and 5 laps per race. Next press X on Lil' Dave then return to the title screen. Press Up Down Left Right R2 R1 L2 L1 within 4 seconds. Set the game to 3 laps per race and press X on Wild Ride then return to the title screen. Press Up Left Down Right Square R2 Circle L2 with 4 seconds. You will hear a tone if done correctly. Now set the game to Amateur with Turbos Off. Press X on Bomber and return to the title screen. Press Up Down Left Right Up Down Left Right within 4 seconds. Go back to Options and set the difficulty to Professional with turbos on. Finally press R2 R1 L1 L2 R2 R1 L1 L2.
Race as Enigma
Go to the Options Menu set the difficulty to Master and set laps per race to 6. Now go back to the Main Menu and press Left Square Down Triangle Right Circle L1 R1