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.
Eternal Star Stage
To unlock the Eternal Star stage, get 100 stars and you open up the Eternal Star stage.
Extra Items
After you beat the Eternal Star save it and turn the system off. Then turn it back on and go to the Mushroom Shop and there is more stuff. There is a No Boo sign and a No Koopa Troopa sign. Also a Credit Record. But you have to buy all the other stuff thats in there like the blocks and other stuff before you can get those items!
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. (Tou 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.
How to get gumball machine
Buy at least 30 Minigames
New Title Screen
After you finish a game with a character, that character will be the star on the title screen.
Swing on Vines in Pirahna Pursuit
In the 1 vs. 3 minigame Pirahna Pursuit you can swing on the vines you see hanging down. This especially comes in handy when you need to swing over falling logs. Try and swing on them whenever possible just to be safe, because it dont slow you down none. You have to have good timing to be able to do it, though.