There’s an old truism in gaming circles that Nintendo is a toy company at its core. This is both praise and critique, expressing a sense of wonderment over the company’s ability to tap into childlike playfulness and bafflement at some of its esoteric hardware decisions. Mario Kart Live: Home Circuit may be the purest recent expression of the “Nintendo as toy company” ethos. For one, it revolves almost entirely around an actual toy: a tiny camera-equipped go-kart that you race around your real-life house. But more broadly, it behaves the way the simplest toys do, by giving back only as much as the effort you put into creative play.