Bumper Ball Maze 1
To access the mini-game "Bumper Ball Maze 1," you must reach the goal of Mini-Game Island and defeat Toad in a game of "Slot Car Derby 2."
Bumper Ball Maze 2
To unlock Bumper Ball Maze 2, you must clear all 50 Mini-Games on Mini-Game Island and then go talk to Toad at the Goal.
Bumper Ball Maze 3
Once you have set new records on Bumper Ball Mazes 1 & 2, Bumper Ball Maze 3 will become selectable.
Easy Coins in Pot'O'Skills
Go to the Pot 'o' Skills at the Mini-Game House and make everyone's handicap 50, 30 turns and hard setting. When play starts change your person to a computer. Now sit back and watch the fun. On the last turn change everyone to humans and take the coins.
Easy Money
Go to Minigame Stadium in the option house. Set the computers on hard, use handicaps and set 50 coins for each player, and set it for 30 turns. When you are near the end of the game turn the computer players to human players so that you can get all the coins they have raked in. Every time I do this I usually get 800-1000 coins.
Eternal Star Board
To unlock the Eternal Star stage, complete all boards, then earn 100 stars and visit the Bank.
Fights Galore
at the title screen push R and L at the same time . Next go to the mini game house and wind up the flyguy . get 60 or better for his flight time and every where you go people will fighting.
Fill Mushroom Bank Easily
Every time players complete a game, the stars and coins from each human player are put into the Mushroom Bank. However, if computer players are filling in, those coins and stars are lost. An easy trick to accumulate lots of stars and coins is to switch all players to human in the last round of the game. (You can do so by pausing and accessing the options menu.) Complete the board and you will be able to keep ALL the stars and coins.
Get Gumball Machine
To get the gumball machine you have to buy 30 mini games in the game shop and you will get a gumball machine every time you get a gumball a mini game will be on it and you will get to play it.
Magma Mountain Board
To access Magma Mountain, you must first play all the standard boards in Light Play (20 turns.) After that's done the key to Magma Mountain will become available for purchase. It costs 980 coins, and is an additional game board with a Bowser theme.
No Boo
After you complete Mario Party by earning 100 stars and by finishing the "Eternal Star" board, "No Boo" will become available in the Mushroom Shop.
No Koopa
After you complete Mario Party by earning 100 stars and by finishing the "Eternal Star" board, "No Koopa" will also become available in the Mushroom Shop.
View the Ending Sequence
It may seem silly to most people, but you can even purchase the ending sequence of the game from the Item Shop, once you've earned 100 stars and have completed the "Eternal Star" board. Once purchased, you can watch the ending at any time from the Option House.