Worst hit detection ever.
I do like the concept and I'd love to see more of this but the hit detection is simply one of the worst I've seen. I consider myself very good at platformer but I was obviously dying way before the pixel of the frog came in contact with the spinning object. Anyways, it's not bad, far from it. But the hit detection is a big issues as I'm sure others have told you. Good job never the less.