I have lost 4 times so far (Bear Hugger, Great Tiger, Don Flamenco and Aran Ryan) and hold the two lower belts, right now Soda P is kicking my butt because I always dodge the wrong way on his right hook.
I almost do not want to move forward till I KO Aran Ryan, he is such a smug SOB and I can only TKO him?!?!
The motion controls work very well, I am sticking with the NES ones though because it just feels like the natural way to play. But I was able to get through the 1st circuit and win the belt using solely motion controls.