It was kind of interesting to see how this game would play it, but I did not quite understand it. I fired and killed the germs, but I still lost the level. I don't think I'm doing anything wrong. They all die upon spawning on the screen, but I still lost. It might be a glitch in the system. I mean, this hasn't been played in a long, long time.
I still found it to be unique. It was interesting to play the game so easily at first. I guess I got what I wanted when I kept losing it. I probably wouldn't recommend it. It wasn't terrible at all, though.