Hint - Lots of Coins
     Go  to  the  Mini-Game  hut  and set it to One-Player, but have 4
controllers  in.  Set the computer to hard and give everyone handicaps
of  50.  Now  play  the  game  until the last turn, pause gameplay and
switch  all  the computer players to human. When the game ends, you'll
have all the coins, including theirs.