Simple game, easy to wrap around, but not so much to master. Took me a wopping 5 mins on the fourth/fifth level. I would say at some point the shooting n moving stuff is a bit wonky, but after a while I got used to it, and the last few maps are really satisfying to nail. Artwork and sfx are good, and I like the way the settings is integrated as part of the game.
Great job, and congrats on the submission!