DS StaffRoll Course is an used in the credits of Mario Kart DS. It is a circle track, with the background of the game's credits as a wall at the right of the road, and with a black void (blue in the DS version) at the center of the track.
The track was originally meant to be exactly like the DS one, so with 1 lap, race finished instantly and no itemboxes. However, the author decided to make the track like it is in the RC1 because actually it's more fun to drive in a race than winning instantly to make TT records without playing. The original idea finally came out as the RC3.alt.