The juxtaposition of the booming gun and the very slow bullets is comedy in motion. I spent a lot of time using a pistol as a chain-gun; it was very enjoyable.
The gameplay was solid, if a tad on the easy side. I'm not sure if three lives were necessary for the arcade survival format; I spent minutes alone on a single life. Bombs were a nice addition to the formula.
There's a bit of art clash between the pixel art enemies and bombs, and the vector art of the main character.
Good work!