This is incredible. The recoil mechanic for moving around is both hilarious and elegant (much like everything about the game, including the title and setting). The game itself is super fun.
My only critique would be the gunshot sounds, which feel a little abrasive to my ear in my headphones (would just EQ down the highest frequencies a little), but it's a minor critique. I like the music!
Very well thought-out and fun. Fantastic job!