Successfully complete Crazy X Level S-S
Successfully complete Crazy X Level 3
Successfully complete Crazy X Level 1 to unlock the West Coast, Glitter Oasis, and Small Apple courses.
Successfully complete Crazy X Level 2 to unlock the bike, stroller, and carriage taxis.
Hold L + R + X + Y + click-hold left analog stick + click + hold right analog stick on controllers one and four simultaneously at the Character Selection screen. A voice confirms correct code entry.
All drivers, courses, and taxis are unlocked.
Simultaneously press and hold:
White and Black, and then press A.
HOLD all these buttons together on controllers #1 and # 4: L + R + Left Analog-stick + Right Analog-stick + X + Y at the character selection screen
Press and hold White, and then press A.
Press and hold Black, and then press A.
Click the right analog stick to turn your headlights on and off.