I would look into a more streamlined installation process. Even if it was just the folder and you press the executable, that way once I'm done with it I can delete one folder and its gone instead of looking for where it saved others.
The music is cool and fits the look of the game. I really like the visuals, the wanky pixelation as characters move feels very retro I like it.
The gameplay is fairly simple but still enjoyable. The one thing I might suggest is to make the bullets that hurt you more visually obvious.
Overall a cool submission.