Okay well, first of all, the music is REALLY irritating. Something calmer and less in-your-face would be preferable. Secondly, The sound effects are just a little bit too loud. And lastly, controlling the ship is WAY too difficult. Implementing easier and more sensical controls would do the game a lot of favors. That being said, I'm sure you're all very good developers, and I hope you'll use this advice to improve this and future games.
Sorry if I was a little harsh :(