I'm taking Flash classes personally, so this was a project just for experience. It took about two days to make and I'm pretty happy with the result. I'm also pretty new to Flash so some helpful advice would be nice too. I didn't copy and paste any open source code or read any tutorials.
EDIT
Thanks for the reviews everybody. I would use more shapes and rotating shapes but I don't know how to make the collision accurate. If anyone knows how, speak up :) . Thanks everyone.