A good attempt
A good attempt at replicating an old formula. It would've been nice to see some sort of story, or at least some mental appeal to anyone other than small children with fetishes for green men and large guns. The levels too lacked thorough playtesting and often depended on a difference of one to two pixels in aim. I did, however, find myself playing every level, so for that, I give you a few stars. Try harder next time.