I really enjoyed it! The post-processing looks really good and the controls fit well with the game. I think it would be an amazing multiplayer game and I hope that you work on it further!
My only advice would be to make the mouse cursor visible and/or unlocked because I think that it provides a focus to the player and also just makes the menu screen usable on a computer. It may just be my computer but as soon as I went to full screen I wasn't able to see the mouse.
[Edit] Almost forgot to put my game :)