Mario Kart 8 is a kart racing game in which players control characters from the Mario universe and other Nintendo franchises. Racers compete on themed tracks using power-ups found in item boxes to gain advantages or hinder opponents. The game introduces anti-gravity sections where players drive on walls and ceilings, gaining speed boosts from collisions. It supports up to twelve players online, four locally on one system, and features modes including Grand Prix racing and arena-based battles. Vehicle customization allows players to mix kart bodies, wheels, and gliders. The Nintendo Switch version, Mario Kart 8 Deluxe, includes all previous downloadable content, a revamped battle mode with dedicated arenas, and accessibility features for newer players.