I really enjoyed this one. Gameplay was fairly smooth, with some of the floaty nature of it being justified by being in space, and the art and sound design was solid, though the music did stop looping after a bit.
I did have some issues with the web player displaying way too large, it was larger then my screen and I couldn't find a full screen option. The speed power ups honestly felt like a hinderance after a while, making it too hard to control, but part of that might have been I didn't realize I was supposed to loop the sun at first and was just looping enemies (That's entirely my bad, your instructions were clear, I missed that detail.)
Overall, good and enjoyable experience. Well done.