Grooverider Slot Car Thunder Cheat Codes for Gamecube

How to Unlock cars

Bedroom Car
Finish in first place twice on the dining room track in the 3 volt class.

Eagle Car
Finish in first place on the dining room track in the 3 volt class.

Harrier Car
Finish in first place on the dining room track in the 3 volt class.

Sprit Car
Finish in first place on the dining room track in the 3 volt class.