I like...
It's challenging, not impossible. It has great graphics, and it has great audio. Overall, a great game. The only thing I'd suggest, is to call the bombs something more along the lines of "Non-self-damaging-nukes-with-a-reall y-long-name" - NSDNWRLN for short. :D
I like the HUD. Not much to get in the way, bomb count, energy, and shields, tucked into the top right hand corner. Health is distributed evenly so you're not fully charged through half the level then next to dead through the other half. The offer of different ships is nice, so you can choose your weapons style.
I didn't pay attention to the story line, however. They always seem to bore me in arcade-like games. ;)
I got to stage 5 on my first try and died by hitting the wrong arrow key and ramming myself into the wall. -.-'
Ten for the game, four for my interest. 10/10 4/5
Great job, keep it up. ^.^