It's a difficult game, but it's addicting. Wish there were more to it, like a puzzle solving mode or something, and the fact that you can't record your high score is beyond annoying. Still a lot of fun.
My favorite User Created Level so far is Guitarded25x's "A S--t Load of Hammers": S9|590|424|0,S11|84|281|89|F,S11|162|3|78|F,S11|484|181.95000000000002|146|F,S11|226|203|0|F,Basket|368|356|10|F,Ball|275|70|0|F,S11|457|29|95|F,S11|418|388|-2|F,
Great art, TERRIBLE story and dialog. Gameplay is more boring than most sniper games because every level's essentially the same. It's a good starting point, though. 3/5