Thank you! Glad to hear this.
Nick - our level designer, asks, can you tell more of how far you get and maybe some difficulties you faced during the gameplay.
Sure, we managed to finish it!! :D
A few nitpicking comments: in the last level the boxes collapsed the way and we had to kill ourselves to retry it, and was a bit frustrating. Also, in the stamina bar, the controls don't respond if it is below the last square, even if you have some left (it feels like you should be able to make a small jump). We think the center of the control is computed from where you last clicked, and some times when you bounce with the windmills it is harder to keep track of where the center is.
But we are being very nitpicking, its an awesome game, waiting for the full release!