Football, but miles better. You drive around an enclosed arena in a crazy car that can jump (and sort of fly if you’re good enough), trying to knock a ball into your opponent’s goal. It’s a very simple concept, but is pulled off extremely well.
The game is a lot of fun even if you’re awful at it. Luckily, the matchmaking system is usually pretty decent so in most games you won’t be destroyed by the people that can do all the fancy flying and flips. There’s a very high skill ceiling, but it still great just to pop on every so often for a bit of fun.