I've been really excited to try out your game! The graphics are godly, from the ships to the results screen. And there's a great attention to detail, like how the guns and their projectiles align.
The difficulty is brutal though. Unfair, even. And obviously it's pretty short. The timed bombs, which are cool enemies despite being almost impossible for me to kill quick enough, show up like two times, and that's a shame.
All in all, pretty awesome. I really hope you'll keep working on this after the jam.