Hmmm... Very interesting game idea indeed! To clear a level you have to play with two characters. It reminds somewhat Lost Vikings except there was three characters to play.
I think there is lack of games that two players would have to play together like we see in the video. For example to get a floating thingie you must jump to reach it on the top of other player. Sweet!
Also when palying with girlfriend it's fun to know that a pleasure could be your reward when you put your body on the top of the other!