Nice bullet hell, reminded me of Bullet Audyssey! I found the game to be quite easy to beat since it was always alternating between the two colors, more difficult levels (maybe not "Galaxy Collapse"-difficulty) would have been great. Also it would be nice to add song credits to the description so that players who enjoyed them can check them out. I knew the music for level 2 was familiar but I had to use Shazam to find it again :P