I chose this game over the other fitness games for the wii because it's supposed to have 480 different exercises. However, it keeps repeating the same ones even within just a 15 minute workout. Is this because I'm not getting 100%? Or is there anything anyone knows of to get more variety in a workout? Also, when I check that I want to use my stability ball, it's not giving me any exercises to do with it. It's frustrating! Thanks for any help!