This is good news for people whose living rooms are a touch too small to give Kinect a good view of your flailing legs, but it does mean that Just Dance 3 isn't as good a dance tutor as Dance Central. Nominally, the game is judging how you move your whole body, but it really only seems to care about your arms. Playing Just Dance with Kinect doesn't feel much different to playing with a Wii remote in your hand. They're there to provide good music and good, acceptably silly choreography, and on those fronts Just Dance 3 excels. The vast majority of people don't play these games for high scores and Gamerpoints. The scoring isn't anything like as harsh – or as accurate – as Dance Central's, but it doesn't really matter. Just Dance is Dance Central's friendlier sibling: less self-consciously cool, less judgemental, more willing to dress up in silly wigs. But if you do, this is fantastically entertaining. If you don't (what is wrong with you?), then Just Dance 3 can do very little to change your mind.
You don't even need to be a good dancer – what matters isn't whether you've got killer moves, but whether you actually like to dance. All you really need to understand is the title. Like Pac-Man, like Space Invaders, like Guitar Hero, you don't need to know anything at all about games to enjoy Just Dance. Dance games, at their best, can be perfect examples of videogames at their purest and most universal.