Not worth it
It was short, had no sound, no effects for firing, no music...I honestly was bummed out. I don't know if this is the end-product, or just the beginning, but unless you work on it I can't give this a good review. There's no sense of accomplishment, and the sporadic movements of the targets weren't all that random, but they did get obnoxious at times. In fact, the first time I tried it, the target appeared where I couldn't shoot it and I had to stare at the screen until the timer counted down. And I'm not speaking about being unable to fire at anything but the wood. I mean all of it was out of my line of sight entirely.
No, this game needs a lot more work before it should come onto Newgrounds, otherwise it's just going to get trashed by everyone else. Sorry mate...