This felt like a schmup squeezed into the theme...
But I played, and I kept playing, and I killed the boss, and I kept playing, and playing. Its quite a chill game. I very much enjoyed the collecting mechanisms, but I get the feeling there's a bit of scope creep going on. Was boost useful? I think I was buying stuff? Were the later weapons balanced. What was I supposed to do with the other ships - avoid them?
I found this a god experience though, it scratched my schmup-itch.