Hi, Mel.
I played your game. Again, I do not know what else to suggest, but to develop your game farther. I would make it look like somebody's body immune system against viruses. So far, it feels nice and polished.
Also, the music got much lower when I uploaded it to youtube. I think that it happened because of my rendering codec. Youtube could not read the second audio track. I hope it is not much of an issue for you.