It was good; satisfying effects, nice graphics, good music and sound efx.
But I found the controls very annoying. Most of the time i died by flying into cliffs, and barly anytime by the actual enemy.
I also think that the difficulty is increasing a bit too fast. You are basically expected to have all weapons on the second boss...
I did't get to the third boss because I was tired of flying into cliffs, but I can't see how he could be much harder than the second one... and then there are supposed to be many more! Harder?
It's a bit sad that you didn't spend more tim on the environments too. On the second and third level it only consisted of brush lines...
Everything kills you, and enemies shoot backwards once you've gone past them for ultimate deaths. I don't think water is all that explosive, really, unless your ship's made of caesium, in which case I'd imagine firing a gun might also make you go poof.
There are a few gameplay flaws that keep this game from being more enjoyable. Enemies can pass through walls that I cant. Enemy fire can pass through walls that I cant. The death hitbox is a little large. I think thats all.