Crazy Taxi 3 - High Roller

Enable cheat mode:
Hold L + R + X + Y + click-hold Left thumb-stick + click-hold Right thumb-stick
on your controller-1 and controller-4 at the same time, while you are at the
character selection screen. If the code is accepted, you will hear a sound.
Now you can access to all taxis, courses and drivers.

Unlock West Coast, Glitter Oasis, Small Apple courses: Finish Crazy X level 1
Unlock bonus stroller, bike and carriage taxis: Finish Crazy X level 2
Unlock another Day mode: Finish Crazy X level 3.
Unlock all drivers: Finish Crazy X level S-S.

Backwards Crazy Dash:
Hit R + A buttons while driving in reverse to perform a Crazy Dash backwards.

No arrows:
Go to the character selection screen and highlight a driver.
Hold White and push A button to disable arrow indicators.
If the code is accepted, you will see the "No Arrows" message.

Disable destination indicator:
Go to the character selection screen and highlight a driver.
Hold Black and push A button to disable destination arrow indicator.
If the code is accepted, you will see the "No Destination Markers" message.

Expert mode:
Go to the character selection screen and highlight a driver.
Hold White + Black and push A button to unlock the expert mode.
If the code is accepted, you will see the "Expert Mode" message.

Turn on/off headlights:
Click the Right thumb-stick

Tornado:
Hold Gas + A + B then hold the Left thumb-stick Right to preform
a tornado.