It's your first game so first, congratulations ! The gameplay was fun and it is really funny how the weapons stacks on each other to form a chaotic mass. I think it lacks several things that could have improved the game greatly : AUDIO (there is nearly none and it's a shame because the art and light is really cool), proper UI screen adaptation, I played on a 1920x1080, 16:9 screen and most of the text and UI design was not in place.
Keep up the good work and it will be even more awesome !