Battle Course 1 is one of the four Battle Courses appearing in Mario Kart: Super Circuit. It is very simply themed as not much is in it. It is typically themed like the Donut Plains-related courses. There is multicolored walls in the area with sand in the middle of the course. It is simply a smaller version of SNES Battle Course 4.
It reappears in Mario Kart 7 as one of the retro battle courses. Rocky Wrenches have been added to amp up the difficulty of the course, along with a speed ramp where tricks can be performed upon in the center of the course where the sand is.