Pretty typical
I have played games like this before and there doesn't seem to be that much that stands out. It does, however, still manage to have some of the enjoyability of games like this. I suggest you make it more detailed. You could put some more details in the background instead of just the same things and obstacles. The witch could also be better designed. I just didn't see how a cave fitted a witch that much. It is still a pretty good effort.
The music gives off a pretty good sense of action. After awhile, you do kind of realize you are just punching the same button and getting the same result over and over. Word of advice, it's nearly impossible to get above those things. I am glad you can just keep your finger on the mouse to get higher. It gets harder than you would think.