I have a good feeling that you will enjoy this game. The goal is simple: try to survive as long as possible and, of course, collect as much as you can. But here's the twist: collecting the big bonuses (the exclamation marks) makes the game harder! Each collected bonus will upgrade the weapon it lies on, so choose wisely. To make it even more interesting, your score is only worth something if you escape (press space or survive the whole 115 seconds) alive -- if you get killed your score is nil.
I am looking forward to reading your feedback, but please don't send me any messages via newsgrounds, I don't log in often. If you are interested in game programming, check out my blog at http://www.scienceandcode .org.
One last thing: highscores only work on the sponsor's site, it's their highscore table after all ;)