Hi there, I tried playing the original and the updated link below. Original doesn't run. And for the updated one I cannot make the 2nd and 3rd character jump very high. Sometimes I can get the 2nd character up to that level. But never the 3rd. And they _do not_ jump like they do in your video.
This is a pity because the video shows you have lots of content (which I want to play!). I will hold off on rating until perhaps a minor fix comes out.