Um, well... Decent, working game I guess. Neat graphics and cool game play I guess. My list of problems are as follows.
1: No Music: Maybe you have no royalty-free ambient music, but come on. Complete silence isn't cool.
2: Loud as balls sound: Never mind about complete silence, a volume bar would've been nice.
3: Somewhat buggy controls/Game: Sometimes the controls don't respond. At all. Other times there's lag in between the key press and the movement. Then, there's the fact of "You actually clip through the trees and walls but a Game Over screen pops up when you touch one." which actually causes the sound to bug out. There are some other minor things, but I'm not nitpicking here.
4: Bland: It's really disinteresting. Not a bad game or concept, the art and everything about it is bland though. Maybe other people will enjoy it more than I, but I personally don't like it.
However, as a plus to you, the game's addicting. I'm still playing it. It's decently hard, and I like that. Overall, I would not recommend this game, but I can see how other people would.
--Red-Kun/CrowTheGuy