Check out the rock star jumps midway through. I am unable to do these things! I think I think I'm going to fall. They are intense! The shred was much easier to do with weights instead of using Nick (when I could) - he is heavy!! (It became a little much holding Nick when they were doing punches, so I had to use no weights since I was away). This is just awesome they are on Youtube!! Is there another level or just three levels?