For all intents and purposes, Body and Brain Connection is a Kinect-enabled version of Nintendo's Brain Age franchise. Though the two games aren't directly connected, they share enough DNA you could consider them distant cousins. The two share a number of exercises (or, at least the concepts behind them) and are hosted by a now Avatar-ised Dr. Kawashima.
Most, if not all, of the exercises require clear visuals, so while presentation is a core driving force with Body and Brain Connection, it's still important. So important, in fact, the multiplayer tacks on a few filters and other visual hijinks just to make questions harder to read or otherwise distract you.
Body and Brain Connection is Avatar-enabled, so expect to see a lot of yourself during play. All of your movements are matched to your Avatar, which can lead to some incredibly awkward, or just plain odd, situations. Legs and arms bending in unnatural ways, tiny movement ticks looking bigger than they are... for as good as the motion-tracking seems in some areas, it's a wonder they cause so many problems during exercises.