The 'Rainbow Road Medley' music track that is used for this stage is a medley of the Rainbow Road themes from every handheld Mario Kart game, which is likely a reference to this stage being exclusive to the 3DS version of Smash 4.Every other stage only uses red Shy Guys. This is the only Mario Kart stage to have Shy Guys with different colors.Additionally, this stage and Pac-Maze are the only new stages in for Nintendo 3DS (not counting Battlefield and Final Destination) to not appear in Ultimate.Rainbow Road and Melee's Mushroom Kingdom are the only two Mario stages not to appear in Super Smash Bros.It is to make way for the touring platform. The stage's starting line is extended at the beginning of the stage, in spite of the fact that it can appear at its normal length when the stage is stopped by the starting line.Coincidentally, Mario Kart 8 and Mario Kart 8 Deluxe feature Rainbow Roads with this trait (its own Rainbow Road, as well as the Rainbow Roads from Mario Kart 64 and Super Mario Kart)-however, its own rendition of Mario Kart 7's Rainbow Road keeps the original's thin layer of rainbow track. The rainbow track layer is notably thicker, as opposed to the thin layer from the original.The road right before the moon no longer bounces.Saturn's ring doesn't have breaks in it on the sides.The area right before the second section sign is no longer bumpy on the sides.The mushroom-based platforms on the course no longer bounce racers off them.Despite this, Shy Guys can still be seen with their gliders. All of the speed/gliding ramps are missing.

The track in the stage is slightly altered from its original appearance in Mario Kart 7.

Luigi and Yoshi with a close-up of a Shy Guy.

Rainbow road mario kart 64 music midi