I used to play this type of game on my calculator all the time. It was a lot of fun. As a flash game I would've liked to see more though. An animated character would be nice rather then a standing individual. The music was fantastic for it. I found myself dancing as I was dodging icicles.
One problem. As I hit around 600 points my control style suddenly switched from keyboard to mouse. This confused me for about two lives until I realized what happened. Other then that, very smooth. Even with the hit detection. I understand that it was done through the bounding boxes rather then pixels. I can't dock you for that. I still haven't figured out how to program it so it ignores bounding boxes.