You have made a complete game within 9 hours, which is an amazing feat in itself, but not only that, you also managed to make it captivating and interesting.
The screen shaking when you shoot is a nice touch, but it is not one that I personally like. The sounds and music fit well together, and I had a blast playing this game. It became more and more difficult the further I went out in space, and I rage quit when I was almost sent back to my space station.