The concept is kind of cool - and the graphics are nice
a few things I found (some are personal opinion):
1) The platforms aren't aligned with the objects themselves - e.g. the platform for the bench is wider than the actual bench - which means I'm floating in mid air once I get to the right side of the platform.
2) The origin for the bird is at the tail rather than the legs, which makes the left-right motion change look strange.
3) I can't walk in front of the two black boxes.
4) The movement of the fox is too limited
5) There should be some sort of animation on the fox when he catches/eats the bird