The Mario Kart World soundtrack contains over 200 tracks.
The score was composed by a Nintendo music team led by Atsuko Asahi, who also worked on the music for Mario Kart 8. The large library includes rearrangements of themes from across the Mario franchise, giving the game’s many regions and activities distinct musical identities.
Mario Kart World also uses dynamic music transitions. In Knockout Tour, course themes include dedicated introductions and endings so the music can flow smoothly as racers move between environments. The result is designed to feel more like a continuous medley than a series of isolated menu selections.
The number refers to soundtrack tracks or arrangements, not the number of race courses. Those are separate counts, and the game’s interconnected roads can be experienced in several modes.