don't give up.
The graphics were wonderful, and the style was good. I agree with one of your first reviewers, background music would have been helpful to keep my intrest. I cut your violence points in half because I think you really could have done more, what with all the pointy objects of doom and misery lying around. Blood spurting and wounds when he gets hit would have been cool. I cut your interactivity score in half since all I had to do was hit two buttons. There really wasn't any other way to interact with the action, just move him from side to side.
Even though the graphics were good, I gave a 3 overall since it really didn't keep me interested.
Keep working on it though. Try to incorperate a points system, add objects that can fall on sphere-man and give him special powers or bonuses, add a time limit maybe, definetely a players choice of a few tunes to play whilst dodging objects and more levels in one flash, if you can help it.
Yes, this one is rather sucky, but there is always room to improve.