Great game! Choreography was solid and I quickly got an intuitive hang of moves.
The stop-motion with explanation of the moves was great too, though I think at that particular instance the game gets done dirty by the resolution constraint/font, which makes the explanations hard to read.
Not criticism for the game itself: I would have preferred if the browser window dimensions were a little smaller so that the whole window fit in my screen (you can adjust them by editing the game page I think).