Successfully complete Crazy X level S-S.
Successfully complete Crazy X level 3.
While driving in reverse, press R + A and you will do a Crazy Dash backwards.
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 will confirm correct code entry. All drivers, courses, and taxis will be unlocked.
Complete the following levels in Crazy X mode to unlock the following prizes:
Level 1: Course maps
Level 2: New vehicles
Level 3: Another Day mode Level S-S: Unlock all drivers for all courses.
Highlight a driver, then hold [White] and press A at the character selection screen. The message "No Arrows" will appear to confirm correct code entry.
Highlight a driver, then hold [Black] and press A at the character selection screen. The message "No Destination Markers" will appear to confirm correct code entry.
Highlight a driver, then hold White + Black and press A at the character selection screen. The message "Expert Mode" will appear to confirm correct code entry. No destination or arrow indicators will appear in this mode.
Press White to view a blue arrow that shows you the faster, shorter way to drop off passengers
Click the Right Analog-stick to turn your headlights on and off.
Hold Gas + A + B then hold the Left Analog-stick Right to do a tornado. Note: It looks more like a tornado when done in the water.