I think it's a really neat concept that could be made into a very fun game but the execution was too poor. Having to restart from the start is fine but having to refresh the whole page is just tedious, and having to do it before the game has even started doesn't make me want to continue playing.
Also, the arrows are way off from where you're supposed to jump. They're almost an entire quarter of the screen ahead of where they're supposed to be. That's just cheap.