The basics: You move a ball through a mini obstacle course using the power of your mind! More specifically, you put on a little bio-feedback unit. When you concentrate, it turns on a small fan that raises the ball. You control the progress of the ball around the course with a small dial. You have to maneuver the ball through obstacles at differing heights by either concentrating harder or relaxing.
You can add or subtract obstacles to adjust the difficulty. Some of them are fairly easy, like hoops, and others are more difficult, like an enclosed slide you have to guide the ball up. We only tried the easy ones, but the harder ones looked interesting too.
Playing: We all had a bit of trouble at first. I could raise the ball up easily enough, but I had a lot of trouble lowering it to go through a hoop. One of my friends had a world of trouble raising it up, but he had great control over it as soon as soon as he figured it out. There's not much too it once you get the hang of it.
It's a lot of fun for the first few minutes, but I can't imagine playing it more than a time or two. It would make a great desk toy though, and it might be fun to pull out at the occasional party.
The dial controls the mechanical air vent (it's simply a hole in a ring, but the mind controls the power of the air. The more you concentrate, the stronger the air - which then lifts the foam ball higher into the air. Losing control is easy (just have someone disturbing you) but lowing the air pressure by NOT thinking is pretty hard.
The apparatus is able to keep score for several players - to some extend.