I quite enjoy doing this, at both the beginner and advanced levels, I usually get most of the single hand strokes perfect, and most of the kicks, though some don't seem to register. However I can't seem to get the hang of the double punch, I do it in time with the remote in one hand and nunchuck in the other, it almost always says 'miss'. I just don't get what I'm doing wrong, it really lets my score down !
Any tips ?

Do you mean the one where they drop a pot on your head if you get it wrong?

The trick here is the timing. You start moving - both hands forward, bend your knees - just before the middle rank Miis finish their moves, otherwise you will be too late. Other than that, there isn't a lot I can offer as help.

Thanks Cynique. As I said my score is pretty good, it's just the double punch that doesn't register, even though I appear to do it in time ! I get mostly 'perfects' for the rest of it. Maybe I'll learn the knack someday !

Try changing the batteries in your wiimote--my scores in that and other games got better when I did so.