Not bad, not bad at all
For a 1st time using flash I'm pretty impressed. I like the graphical style to be honest, I grew up in the 80's so big blocky pixels are pleasing to my eyes. Not too hard, nor too easy, I had to think about where to hit the final boss. The sound is pretty good actually, I like the music loop at the end, it sounds like it could be part of a damn good tune. All in all a very decent 1st effort, keep up the good work dude.