Had insane fun last night with the Happy Feet game. Not so much playing it, but watching the kids just about turn themselves inside out playing the dancing game (bit like dance dance revolution, but flick the wiimote in the direction of the arrows instead of step on a pad)

I am definitely liking this fitness for kids idea. They ended up tired out and slept very well!

(But I agree that Monkey Ball sucks with this UI - or maybe I'm just incapable of getting past the parrots on the first world:-(