A variety of different coloured Shy Guys drive around the track in the same way they did in the source game, with the large jumbotron in the background accurately keeping track of each racer's position on the track the jumbotron also displays a timer that starts counting up from the time 'fight' is called, though this is only correctly synchronised with the round starting after Kung Fu Man's intro has finished in WinMUGEN's default motif. Brawl, with the one major difference being that the fight takes place on a grated platform in front of the track's jump ramp rather than being on the ramp itself or on the section of track below it, due to technical limitations of the M.U.G.E.N engine making it impossible to properly replicate the stage as it appeared in the source game. Luneth's version of Mario Circuit is similar in appearance to the stage as it originally appeared in Super Smash Bros.
