Nintendo just dropped v4.0.0 on Mario Kart 8 Deluxe and Switch 2 owners are about to turn living rooms into full-blown war zones with eight-player split-screen. The update carves the screen into eight portrait windows for local chaos, adds CameraPlay so your squad's faces pop up during 2-4 player races, and sharpens visuals with faster loads—exclusively on the new hardware. Original Switch players get minor tweaks like a slight speed boost equivalent to one coin, but the real party upgrade stays locked behind Switch 2 power.

Patch notes confirm you can hook up to seven legacy controllers, but hitting that full eight requires at least one Joy-Con 2 or Switch 2 Pro Controller. CameraPlay needs a USB cam and stays offline-only via GameChat for privacy. This isn't just a polish pass—it's Nintendo flexing the new console to resurrect a decade-old game with multiplayer that feels fresh and unhinged.

Community buzz on X is already hyped, with clips calling the eight-player mode "insane" and praising how it keeps the 2017 classic alive. Mario Kart parties just leveled up, and anyone without a Switch 2 is about to hear about it nonstop.