GBA Bowser's Castle 2

Bowser Castle 2 is the fourth course of the Flower Cup in Mario Kart: Super Circuit. Its obstacles are falling Thwomps and thin rectangular gaps in the floor that make drivers fall into the lava below. The track is also well known for its jumps.

Appearance in Mario Kart DS
It reappeared in Mario Kart DS as the third course in the Banana Cup. It is basically the same but of course the usual switch to 3D and up-to-date graphics. If a racer is tiny, they cannot complete the first jump necessary for completing this course.