So what?
OH NOES, they're saying it's similar to another game somewhere out there? Gosh, I bet that's not true of anything else on NG! And FWIW, I think this one handles a little better than the original that's been linked to; the controls don't feel as slippery to me, but that could just be my imagination.
The originality argument just doesn't matter that much to me... for all I know, the only reason this even exists was so that the creator could mess around with this style of game to get a feel for it.