https://www.theguardian.com/games/2020/oct/14/nintendo-switch-mario-kart-live-switch

Game action on Switch steers cars round obstacle courses you create in your living room

Mario Kart has been a family favourite since the early 1990s thanks to its potent combination of cute characters, speedy but simple racing and an array of red shells, banana skins and other eye-wateringly unfair tools of playful sabotage. Nintendo’s latest experiment in the toy world, made in collaboration with Velan Studios, is an actual Mario remote-controlled kart that comes with a game. Instead of confining all the action to a screen, this lets you race a little car around your living room, using a Nintendo Switch to control it.