Wow is all that I can say. I started Level 3 yesterday and I find it extremely difficult compared to 1 & 2. I consider myself to be in decent shape, but there were a couple of moves that I could hardly do even the modified version of. I might stay in this level longer than the 6 days I planned just to try to really get it down. Not sure if this level focuses on some of my areas I didn't realize were this weak, or if it is just this HARD!