Sega Rally Championship
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.
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".
Type XXY in the options screen.
Lake Side track:
Press X + Y at the main menu, then select any game.
Hold X and press A at the car, race, or, mode selection screen to remove the
dashboard and display.