Can anyone explain to me how to get two player going on this game? The manual is vague, and I have spent a couple of hours guessing at which button to push when.

Any help is appreciated.

I am having the same problem. I am trying to get the 2 player mode going for my young son and, to his disappointment, nothing yet. The book says press "-" button at the loading of the game. I have tried at loading of the disc, game, levels.... it will not work.
If anyone can tell me what I am missing, please HELP! My son would be so thankful!

Ok try this do normal one player and decide who is going to have which character

suppose that the characters are sokka and katara

suppose you want to be sokka and your friend (or son) wants to be katara

make sure you are playing as sokka

have the other person turn on wii remote 2 and then procede by pressing the 1 button

to switch characters simpily press the 1 button to log out 1 remote switch and have the remote press 1 again