Race as Enigma
Complete all ten tracks at the Master difficulty level. This will also enable the Insane difficulty level.

Stay at Turbo Speeds
Keep Triangle held after running out of turbos to keep the speed over 100 mph.

All Tracks
Use the following steps to enable all tracks, including the alternate tracks:
1. Set master difficulty and five laps per race at the options screen.
2. Press X on Li'l Dave at the 1 player select screen, then go back to title screen.
3. Press U, D, L, R, R2, R1, L2, L1 within four seconds at the title screen.
4. Set three laps per race at the options screen.
5. Press X on Wild Ride at the 1 player select screen, then go back to title screen.
6. Press U, L, D, R, S, R2, C, L2 within four seconds at the title screen.
7. Set amateur difficulty and turbos off at the options screen.
8. Press X on Bomber at the 1 player select screen, then go back to title screen.
9. Press U, D, L, R, U, D, L, R within four seconds at the title screen.
10. Set professional difficulty and turbos on at the options screen.
11. Press R2, R1, L1, L2, R2, R1, L1, L2 within four seconds at the title screen.
Race as Enigma
Set master difficulty and 6 laps per race at the options screen. Press L, S, D, T, R, C, L1, R1 within four seconds at the title screen.

Win a trophy using the indicated racer to enable the corresponding game feature:

Option = Racer
Cyberspace Cam = Technician
Ice Racing = The Hun
Remote Control = Steele
Super Agility = Vampeera
Super Brakes = Wild Ride
TV Cam = Blade
Unlimited Grapple = Gadget
Unlimited Turbos = The Max
Upside Down Cam = Lil' Dave
Zero Resistance = Bomber