Interesting piece of concept. The enemies move a bit too fast at times, so they are hard to dodge/shoot. You already know about the controls issue, so I won't go in detail. You actually made some music so props to that :)
Hey, at the end of the day, you made a game!
And you will get better at it the more practice you get :)
P.S. Also, the best way to upload your game (talking about jam submissions) is to make it playable in browser. After that comes a downloadable zip that you just need to extract and play. What I'm saying is, don't make a frickin' executable setup for crying out loud xD