You made it!
I liked your game very much - though I'm not a big fan of these "spaceship-fire-ahead" games.
The sound was really well fitting, maybe an additional song, but I was really ok.
While the controls were very precise the ship was too slow at the beginning and just at a normal speed at the end.
( I had these upgrades:
Anyways: damage was the best, if I couldn't upgrade it I took speed and health just when necessary.
The graphics were nice, I like that clean design, but at least you could improve that as well. ( on the other side no real loading times or anything like that).
The bosses were too easy.
->harder bosses, shorter chapters (maybe just 28 levels?), something that makes this game special (the creator of exit path has discovered this *specialness*)