Big Donut is a battle stage in Mario Kart 64, and reappears in Mario Kart 7 as a retro battle stage.
Layout
The stage is in the shape of an enormous doughnut as the name implies, and in the middle there is a large hole, full of lava. If a player falls into it, they will lose a balloon and will have to be returned by a Lakitu. There are four block towers located around the course. They are there to provide a means of evasion from opposing racers and their items. As well, the course is slightly sloped inwards.
Mario Kart 7
This battle reappears in Mario Kart 7, the stage is mainly unchanged, apart from the addition of glider pads.
Gallery
An overhead map of the stage.
The course in Mario Kart 64.
The course in Mario Kart 7.
The stage's icon in Mario Kart 64.