The SFX is good. The aesthetic works well with the camera visuals. The environment could use a few more objects, but I do like it. The animation for the gun and the text is amazing.
The green buttons don't seem to make much sense. The middle one goes down first, and I lost when only the middle one was down. I assume them to be lives. The opponent's green button just disappeared instead of going down. Throughout half of the game, I was saying that looking around would be sweet, but then I tabbed out, and I could look around. I then noticed that holding ALT allowed me to look around, but when tabbing out, it glitches the game, which will deduct a point. Lastly, the sound is just a tad bit too loud.
5/10, the loudness and camera bug make the gameplay stiffer.