Pretty good.
The graphics do need some work, but you have something good going. A background would help a ton. I liked the preloader. The file size could be reduced by reducing the song at the end (during the credits) in length. NG has some help on doing stuff with flash, along with some tips about sound optimization. That would also help to bring down the file size. The exact url is http://www.newgrounds.com/flash/index.html Hope to see more of work in the future.