The Mario Kart franchise has undergone a significant amount of growth since its first game, from a simple kart racer to one of the most entertaining arcade racing titles on the market. The most recent entry, Mario Kart 8 Deluxe on Switch, has been one of the most successful games for the portable console. Mario Kart 8 Deluxe has been so successful, in fact, that there's been no definitive sign that Nintendo plans on making another sequel anytime soon, but many fans have still expressed interest for a sort of Mario Kart 9.