Very good potential, but a bad game, because it starts out WAY too hard.
You can't even jump over the enemies without getting hurt. You only have one life, and there is no way you are going to make it very far the first few times, and then you gotta start all the way from the beginning, and that's simply boring. People are going to give up, before it gets fun.
Make a more balanced difficulty curve, and this will be very popular.