My minimum expectation of a Kinectspiel would be to somehow sees at least the character and get visual feedback.
However, this game is just a collection of videos where real kids are cut in a video game world - and somehow rated is what makes the person in front of the console, the person but NOT visuel is integrated into the game in front of the console - that's what makes us, however, the most fun. Otherwise I can watch and dance its a music video me.
In my view, for us, an absolute bad buy, for something you do not need an extra Kinect, it reaches a CD / DVD.
Too bad.