While we really love the art style, really giving a dystopian sense... We find demoralizing the lack of variety in enemies pattern and in gameplay... It's a pity, but you can definitely improve on it!
I'm doing my best to improve it within the voting period. I'm going to add parallax scrolling of the background as the last thing I wish I had, but all the rest is set up for more enemies with different patterns (as much as the basic AI allows at least)