The idea is that, once you get the ball going, you keep moving it in a circular motion in your hand. Depending on how and where you place your hand as you work against the force of the gyro, you will work different muscles. You can also change the "size of the weights" you are lifting by slowing down or speeding up the Powerball. At lower speeds, the gyro exerts less force and acts like smaller dumbbells. At higher speeds, though, you will be fighting the spin a lot more and you will be working out your arms as if you had heavier weights on.
The Powerball: Gamer comes with a Power Starter. This is a cradle you rest the ball on that has a big red button. Holding down the button starts the gyro spinning and after 8 to 10 seconds, it has built up enough speed for you to pick it up and start your workout.
The final piece of the Powerball: Gamer, and, I guess, what makes it a "Gamer" version, is the Speed Meter. This is a small electronic dial that sits on the top of your Powerball to record everything from the speed of the gyro, to the RPMs and the maximum revolutions in 30, 60 and 90 second intervals. This way, you have a score to share and brag to your friends about.
