Mario Party 3 Codes -

Classic saved game names:
Create a new saved game file, but do not enter a name. The game will automatically name the file after a classic Nintendo character.

Coins:
Roll doubles on the dice after using a Mushroom for ten coins.

Roll triples on the dice after using a Golden Mushroom for twenty coins.

If you have no coins, land on a Bowser space (or call him on the Bowser phone and go see him). He will give you 30, 40 or even 50 coins.

Taunt:
Press L during game play to hear your character's taunt. You can only do this while on game board, but not in mini-games.

Miracle Star:
Earn a S rank more than 8 times on the duel and board levels.

Super hard difficulty:
Successfully complete the game in story mode under the hard difficulty setting. The super hard difficulty setting will be unlocked in story and party modes.

Face on Mt. Mariomore:
Successfully complete story mode with any character to place his or her face on Mt. Mariomore.

Easy mini-games:
To unlock the regular mini-games easily, save the game after a turn. If the game selects a mini-game that is new to you, play it. If not, reset the game and try again.

Bonus mini-games:
Successfully complete the game in story mode to unlock the Backtracks, Waluigi's Island, and Stardust Battle mini-games in party mode.

Play all regular mini-games to unlock the Dizzy Dinghies mini-game.

Collect over 1000 coins in Game Guy's Room to unlock the single player Mario's Puzzle Party mini-game.

Waluigi Island:
When you have five Stars on your paper, Daisy will appear (Starguy has a crush on her) and say that she is the prettiest and that she will just about get the Star Stamp. You will answer no fair start arguing. The Star says "Duel on Backtracks - beat Daisy to get backtracks". When you have six Stamps, Waluigi will steal the seventh and you have to do a Battle Royal to win it. Win to unlock Waluigi Island.

Hint: Find Star positions:
When it is your turn, press R to view the map. Move around, and look for a lighter area than the scenery. A Star might be there when the current Star is bought. Note: In Spiny Desert, it will only tell where a mirage or real Star may be.