Gorgeous
Simple concept, but very nice graphics. I loved the Parallax background!
Although one issue I did have (whether or not thats to do with my computer) is that the mouse disappeared every so often, so I found it difficult to click buttons. (Mainly in the menu).
I did find steering quite difficult, due to there only being one control - maybe thats something to think about in future updates / games.
Nice colour coding, and plenty of levels to get through.
Keep up the good work! :)