Grooverider: Slot Car Thunder

Unlock Bedroom Car
Finish in first place twice on the dining room track in the 3 Volt class.
(Thanks to rabidmoogles@hotmail.com)

Unlock Eagle Car
Finish in first place on the dining room track in the 3 Volt class.
(Thanks to rabidmoogles@hotmail.com)

Unlock Everything
At the main menu choose "Single Player", then select "Time Trial" Enter MARK, then return back to the main menu to see the new option, CHEATS. It's under Special Features.
(Thanks to nintendogod@hotmail.com)

Unlock Game Credits
At the main menu choose "Single Player", then select "Time Trial" Enter BGM, then return back to the main menu to see the new option, CHEATS. It's under Special Features.
(Thanks to nintendogod@hotmail.com)

Unlock Harrier Car
Finish in first place on the dining room track in the 3 Volt class.
(Thanks to rabidmoogles@hotmail.com)

Unlock Sprit Car
Finish in first place on the dining room track in the 3 volt class.
(Thanks to rabidmoogles@hotmail.com)