Could use some more detail
The main gripe I had with this game was how it was so hard at the first level. I didn't even notice the ship that was on the other side of the screen! Once I got past that, I managed to enjoy the game a lot more. I am not sure if it was something I would recommend, because it's so close to being mediocre. I guess it's just that there isn't that much that makes it different from anything else. The graphics aren't bad, though.
I liked how there was a different theme for every level. The sounds and everything seemed authentic. The information could have perhaps been a bit more clear. It just didn't seem to be that interesting or flashy enough for me to really enjoy it. I do, however, see some great potential for you so hopefully you can make better stuff.