I purchase this game when it be on sale for $ 15 on another website . I want something that would get I active and -lrb- hopefully -rrb- lose a few pound in the progress . I start the 9 week program first on medium . I currently have 7 workout leave in the program and have lose 12 pound in 8 week . I have not change my diet , but I do try to walk at least 30 minute a day during the week -lrb- I walk around 4.3 mph -rrb- . at first the game be frustrating , as I want to do rep at my speed , but you have to do they at the game 's pace . for instance , when you do a lunge , you have to hold the lunge for around 2 seconds instead of go down , then come back up from the lunge . once I figure out to wait for the game to start the rep , I do not get as frustrated . the heart rate monitor have be a little wonky lately . I 'll do a cardio exercise and will end with my heart rate around 155 . a few seconds later when I start the next activity , it will say my heart rate be 115 . it be only start do this lately , but it do not do it that often . if you be look to get active and build up you leg , and hit some other area , then this be a good game to get . I 'll probably continue do exercise even after the 9 week program be do .