Mario Kart: Double Dash!!/Nintendo GameCube

Nintendo GameCube (Battle Stage)
The Nintendo GameCube battle course consists of a Nintendo GameCube floating in what appears to be outer space, and is the simplest course in the game, for it is just a plain surface with glass walls surrounding it with the Nintendo logo; the course is entirely flat except for the small depression in the center of the disc cover opening button. The Nintendo GameCube is purple with a picture of Mario and Luigi in a kart in the center along with the Mario Kart logo.

The Battle Stage is simple, literally being a Nintendo GameCube, the only difference being that there is a picture of Mario and Luigi, not the "Nintendo GameCube" logo and tall, glass walls around the edges so that no one falls off.