Samurai Gunn is a lightning-fast Bushido brawler for two to four players. Each samurai is armed with a sword and gun, with only 3 bullets to a life. Discipline and quick reflexes are the key to deflecting bullets and sending your opponents’ heads rolling.
Official Website: http://maxistentialism.com/samuraigunn/
(includes cheaper Humble Store purchase option)
Buy from Steam: http://store.steampowered.com/app/239090/
I've been watching this game ever since I saw it at PAX Prime, and recently got even more obsessed with it after seeing Towerfall, which I want even more.
Well, now the PC version is out, but I'm doing to double dip and grab the PS4 version as well to simplify things. Now I have to try and get my PS4 controllers to work on my PC in the interim.
Edit: Oh, it supports PS4 controllers out of the box. Coooooool.