I know there is a way to switch characters without using the nunchuk C button, because when playing with my daughter who didn't have (or want to have) the nunchuk, she by chance managed to switch characters, but didn't know what she did. And I've seen the green circle highlight that signals the switching action more than once. I am guessing it's a combination of wiimote buttons (I think A was involved) with something else (direction button? some sort of a wave or shake?). Does anyone know what that combination is?