Race up to eight friends in a browser tab, no download and no console — the room loads from a shared link, and anyone can join from a laptop or a phone held sideways like a handheld. Hold a drift into a corner to charge a boost, then let go for the payout. Turn your camera on and your driver wears it, so the kart that just banana’d you grins back. 18 items, 4 tracks, voice chat runs the whole race.