Ok.. I don't know why but it didnt work on my pc BUT it worked on my old one! Sooo here is my review:
The graphics are amazing! They are so simple but give a great atmosphere. The controls are easy to understand although I have to say that I still dont quite get when a new stage starts. Do I need to be inside of the square and look up?
I know this doesn't really go with your story but I think it would be cool if enemies could hurt each other. Then it woudn't just be dodging but also strategic planing so that the player has to decide where to go so that an enemy shoots another one.
Another thing I really liked is the background! It looks so amazing and the camera movement feels very natural.
I didn't have that much time to play through all the stages so the following might not be true! I think there could be a more diverse set of enemies that do different things. Maybe one that shoots lasers in 4 directions.
Another addition that would be pretty cool is like a story mode (or just a narration between levels).
Overall I really enjoyed the game and will check it out again :)