The idea is great, but the game would be alot better if you expanded it. And somehow you should make the stage bigger (=make the character and the enemies smaller) and also make everything move faster.
After a loong time I finally got the hard badge. It was all worth it, this game rocks. There were a couple of levels that almost got me banging my head to a wall, but I finally managed to complete them all. :) The last level was suprisingly very easy. 5/5