Stratos car: Type XYZYX at the main menu, then select a mode. Highlight the Celica on the car selection screen and press [Down] to select the AT transmission, and the Delta to select the MT transmission.
Easier handling car: Hold X and press [Enter] to select any car at the car selection screen.
Mirror tracks: Hold Y and press [Enter] at the game select screen in arcade mode.
Ultimate Ghost car: Select time attack mode. Hold X + Y and select "3 Laps".
All tracks: Type XXY in the options screen.
Lake Side track: Press X + Y at the main menu, then select any game.
Full screen: Hold X and press A at the car, race, or, mode selection screen to remove the dashboard and display.