If you choose Yoshi and win on hard against Mario, Luigi, and Peach,
on the Bowser level you will be super Yoshi next time you choose him.
Bowser Land:
To get Bowser Land, you must complete every other board with any character
and have a superstar on each.
Mini-game land extras:
Purchase half the mini-games from Woody in Mini-game land to receive
the mini-game arena. Beat Bowser land for more arena modes. Also, purchase all the
mini-games from Woody to get the mini-game coaster.
Mini-game coaster mode:
To get the mini-game coaster, just purchase all of the mini games. This
mode allows you to play all of the mini-games in an adventure. All together, there
are nine worlds.
Purchase item mini-games and battle mini games:
Successfully complete the mini-game coaster under the normal difficulty
setting to get the ability to purchase item and battle mini-games. Complete it under
the hard difficulty setting for battle games.
Credits machine:
To get the credits machine, successfully complete the game on every course,
including Bowser Land, then visit the options laboratory.
Shock, Drop, or Roll:
On the 1 vs. 3 game, Shock, Drop Or Roll, have the player that is the
switch person press Forward and then Back to make the other players fall off. Note:
This trick works best with Donkey Kong and Yoshi.
Taunt other players:
Press L to do your character's taunt when it is someone else's turn.