Thanks Guys,
I think you are right. I will probably put a menu (with highscore function) and some sound effects and music. Levels will be easy to make.
I didn't upload with these features because it would increase to file size.
I will also include a two-player function (EG. Multiplayer on the same computer, using the numerical keypad).
Thanks for the feedback anyway guys. It is not bad for 1/2 a day of programming.
Take it easy
Static