Good job putting a submission together. Reminds me of some old adventure games from when I was a kid. Definitely keep going - making the puzzles more involved would go a long way.
One thing I noticed though - I couldn't find your credits / attribution for the assets you used.
Interesting idea - very unique take on a shmup. Definitely not a mechanic I've seen before. I wish the camera followed the ship a little more closely though - it's easy to run blind into an enemy.