Interesting
This game was entertaining, for an hour or so. Before I go on with this review, know that the following is only criticism, intended for you to improve future projects.
I liked the story of this game. It wasn't complex to any degree, and really in a game like this that would detract from it. On the other hand, it really was kind of hard to tell when the game would end. The conversations were pretty funny, though in some places were not fitting (the part where he rambles on during the timer was hilarious though), and the 8-bit graphics suited the game perfectly.
The game itself though, was easily completed using X. I never wanted to use C, because I would lose the health regeneration that is completely overpowered. This leads into my second point of the players sounds; I quickly got sick of the protagonists "HIYAAAA" every single time I hit X. Other than the bosses, every enemy didn't require thought. I bet you put a fair bit of effort into those sprites, but I'd be lying if I said I was looking at them rather than the huge gray circles around them. Finally, I think a tutorial would be excellent for this game. There were 3 pages of instructions, but after that you were thrust headfirst into swarm #1. I don't think it was stated anywhere that you could upgrade your abilities, and like others, I got stuck on the bridge.
By all means don't stop making games, keep up the good work ^_^
~~Quaza