Smash Karts is a kart deathmatch. You drive a small kart around a compact arena with up to seven other players, running over weapon boxes and using whatever pops out — rockets, mines, machine guns, a giant hammer — to destroy everyone else. Most kills in the time limit wins.
There's no racing line to learn and no lap to complete, which is the point: it's Mario Kart's battle mode as a standalone browser game, with matches that take two minutes and need no account.
No — pick a name and play. An account saves your level, karts and cosmetics.
Up to eight in one arena, in short timed deathmatches. Karts respawn quickly, so the pace stays high.
Yes — it runs in the browser with nothing to install and is light enough for school hardware. It needs a live connection.