http://store.steampowered.com/app/261180/

$14 for one copy, there's also two and four copy bundles at a discount. Played a handful of matches online and it's wonderful, netcode has been fantastic so far and it's just fun as hell.

So there's online play to this? That actually makes me more interested in it only thought it had local.

It's also today's Daily Deal ($7 for a copy, $11 for two, $20 for four) for the next ~37 hours. I picked it up earlier, it's pretty fun (although it seems like you'd have to play a lot to get good at it; I basically just button mashed with a friend).