Battle Course 4 is a battle stage from Super Mario Kart. It reappears in Mario Kart Wii as a retro stage. It is also the only battle stage from this game to have been remade into a retro battle stage. The GBA Battle Course 1 is a miniature version of this.
This stage reappears in Mario Kart Wii as the first retro battle stage in the game. It is not recommended to use Mushrooms or Stars on this course since it is hard to chase an opponent (except if they have been hit by a Thunderbolt). The optimal items are Red Shells and Green Shells.