Mario Party 3 Cheats & Tips

Auto-Naming
If you don't enter a name for yourself when you create a new save file and leave the field blank, the game will randomly pick a classic Nintendo character name for you (this means it will using something like Mario, Luigi, Yoshi, Wario, and other names)

Unlock Bonus mini-games

1. When you complete Story mode, you unlock the Backtracks, Waluigi's Island, and Stardust Battle mini-games in Party mode.
2. When you play all the (non-bonus) mini-games you unlock the Dizzy Dinghies mini-game.
3. Collect over 1000 coins in Game Guy's Room, and a single player Mario's Puzzle Party mini-game is unlocked.

Character's Face on Mt. Mariomore
When you complete Story mode, the character that you used to finish the mode will appear on Mt. Mariomore.

Taunt
During gameplay, press L to hear your character's taunt while on a game board (this won't work in a mini-game).

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.

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