Mario Party 8 Wii Cheats

 Bowser's Warp Orbit:

 Complete the Star Battle Arena with any character.


Test For The Best:

  Unlocked in the Fun Bazaar.
 Crown Showdown:

 Unlock a mini-game in the Four Player, 1 vs. 3 Player, 2 vs. 2 mini-game and Duel mini-game categories. 
 Flip Out Frenzy:

 Unlock a Four Player mini-game. 
 Tic Tac Drop:

 Unlock a Duel mini-game.
Play as Blooper or Hammer Bro.:

  Complete the Star Battle Arena with any character to unlock either Blooper or Hammer Bro. Then, complete Star Battle Arena with that newly unlocked character to unlock the other character. 
 Minigame Wagon:

 Successfully complete Star Battle mode to be able to buy mini-games at the Minigame Wagon.  
 Easy Dart Shooting:

 Just as the target you are aiming for gets to about the 9 o'clock position, or slightly after, throw the dart. If timed right, then you should hit your target.

 
 Easy Ping Pong:

 Serve the ball, then hit it at the latest possible moment. If done correctly, this will result in an ace.
 
Minigame Wagon
When you beat Star Battle mode, you can buy minigames in the Minigame Wagon.

Fun Buzaar Unlockables

You'll need to trade Carnval Cards at the Fun Buzaar to Unlock the following stuff.