Rainbow Road is a location in Mario Hoops 3-on-3.
Description[]

Mario Hoops 3-on-3 screenshot of Mario dribbling on a ? Panel as a green and a blue Bomb approach from behind
Rainbow Road takes place in a tower-like setting above the clouds, and is named for the Rainbow Road-esque course that loops around the court as an aesthetic addition. The main gimmick of Rainbow Road is Lava Bubbles and colorful Bombs that come out of holes to attack the player, like with Bowser's Castle, although only orange Bombs appear there.
In Mario Hoops 3-on-3[]
Rainbow Road is the unlockable third course of Dribble Race mode.