Rainbow Road consists of a flat rainbow platform that travels around the track and landing in several areas. Some of those destinations include the rings of Saturn, a white polka-dotted mushroom trampoline, the finish line, and a moon. It is a cruise-style stage similar to Port Town Aero Dive, Delfino Plaza, Mute City, and Skyloft. Much like in Mario Circuit, Shy Guys will drive around the course and serve as damage-dealing obstacles. Like in Mute City, touching the track while the moving platform is in motion deals upwards knockback.
The stage only consists of a single platform which does not follow the track, instead remaining still above the split-up roads following the tube. The omega form depicts these roads as curved; in both the stage and the racetrack, the roads are straight.
Shy Guys debuted in Mario Kart DS as the only drivers recipient players of DS Download Play could play as, but made their proper debut as part of the roster in Mario Kart 7. In this stage, Shy Guys drive in their Standard Kart.
Rainbow Road is notorious for being one of the most, if not, the most, difficult tracks across the Mario Kart series.