I have to be honest, I went into this with low expectations. I've played a lot of really well done zero-G games in the jam, and some of them have a very similar base mechanic/set of intro puzzles. That said, you did a great job differentiating yourself and adding your own mechanics, which made it a lot of fun.
My only real complaint was the boss. I didn't understand what to do, and it kept killing me when the crosshair wasn't on me.