I am sorry, but I did not like this game at all. I think the strangest thing about it was probably how it didn't let me advance anywhere. This seemed to be the only level. I can understand if you want to do something different, but this just didn't have anything noteworthy. The graphics were way too simple. I noticed there was even some glitch where you could go down and see the whole top of the picture.
No matter where I sniped, it always beheaded by enemies. The color effects are weak as well. You might want to spice it up by having some music in it. The enemies could also have a different, more detailed design. It was too easy for a "challenge".