Poorly made.
When I clicked on this game, I expected a good game, I expected top notch stuff even and what did I get? A lame submission. The graphics, although not bad, weren't great ether. They didin't help the submission and it really showed how bad this submission really was. The gameplay was flawed simply because it was super hard to keep all the Z's away. Not only that, but once they got to a certain place you coulden't stop it. The controls were hard to work with, and this was all topped off with no instructions. Overall a rushed effort to advertise again, and I didin't like it. If I wanted you, I would have looked you up myself.