I do see the idea you had to make it so the shots were linked with your enemies, but I don't feel like it really worked on a level you wanted it to. Its a real shame because I do see the idea here.
There just needed to be a little more to do in the game, because as it stands right now, its just kind of a galaga clone with extra steps.
I do really enjoy the presentation of this though, I just feel like it wasn't really there as far as a finished product.