Crazy Taxi Cheat Codes:

-Bonus Levels In Crazy Box Mode (Japanese Version)
Get an S license with all four characters in arcade mode to unlock the "Crazy Party" level in crazy box mode. Other new levels can be unlocked after successfully completing the regular crazy box levels.

-Alternate Display
Begin a game in arcade or original mode. Then, press B on controller three to switch the display to a first person perspective. Press Y on controller three to change to another camera angle. Press X(5) on controller three to view a speedometer. Press A on controller three to reset the display.

-Another Day Mode
At the character selection screen, press R, then hold R while choosing a driver. If you entered the code correctly, the message "Another Day" will appear. This mode modifies various positions in the game.

-Special Taxi
At the character selection screen, quickly press L, R, L, R, L, R or L + R, L + R, L + R. Then, select a character to drive a bike instead of a taxi. Alternatively, complete all sixteen Crazy Box levels to unlock the Special Taxi for each character, which is selectable in crazy box, arcade, or original modes. To select the bike in crazy box mode, scroll to the right of Gus at the character selection screen. To select the bike in arcade or original mode, press Up at the character selection screen.

-Disable Destination Indicator
Before the character selection screen appears, hold L + Start. If you entered the code correctly, the message "No Destination Mark" will appear in the lower left corner.

-Disable Arrow Indicators
Before the character selection screen appears, hold R + Start. If you entered the code correctly, the message "No Arrows" will appear in the lower left corner.

-Expert Mode
Before the character selection screen appears, hold L + R + Start. If you entered the code correctly, the word "Expert" will appear in the lower left corner. No stop or arrow indicators will appear in this mode.