Body and Brain Connection

For this achievement, you don't actually need anyone to play through all 6 levels (= 3 of each) with you in their entirety, nor do you need to be skilled in any sort of way (points don't matter). All you need is someone to help you start the events* - making this one insanely easy. As with all of the Body & Brain Connection achievements, they are offline only, meaning you'll actually need to find a friend/family member to do this with you in front of your kinect.

An additional note is that you shouldn't worry if it takes "Player 2's" picture for both player 1 and player 2 as it did that for me, yet I still got the achievement as soon as I completed the last (i.e., the Advanced) level of "Strike A Pose".

I've also heard that with some of the achievements in this game, that only Player 1 will get the achievement - so that is something you may want to consider when going for this one.

* I know this because I got it with the help of my 4 year old son, who didn't have the patience to sit through all of the events with me. It was actually hard enough just to get him to stand still long enough for the game to "register" him, so that I could get the events started.