I got a bit further than the bouncing thing, but fell down. When I got back to the bouncing thing, it had 20% of the original power, so I could not jump up again! :(
Would have been nice with some sort of checkpoint system, because starting over from the absolute bottom is not the best way of keeping my motivation on top in such a game :)
I like that the collision shape of the frog was pretty forgiving, and I like the controls.
I think you made a pretty good game here!