I found this one when sorting by random and I am so glad that I did.
This game kicks ass and looks super cool! The dust clouds sometimes are a little TOO insane to spot some of the oncoming baddies and I would take a hit on occasion there was simply no way to see coming, but I wasn't ever too mad about it and just wanted to jump right back in.
The art style is charming, the mouse controls are fun, I really like the digitized sprites for the hand and Nerf gun, I managed to get 40 seconds and I think it said 20 kills? Not too shabby. Super cool! :P