To have a higher chance at winning the Bonus Game Roulette just win the Gold Medal for that level.
Master Code (Must Be On)
Access all Stages
Have all Eggs
Have 99 Coins
Have 3 Egglings
Invincible (Boss Stages)
Credit to GameShark and Mad Catz Inc. All rights reserved.
To unlock Challenge Mode, you must defeat the 2nd Bowser. Challenge Mode will be available on the Title Screen and contains a series of extra minigames. There are 5 Challenge Marbles for that mode.
Unlock 1st Marble: Defeat the 2nd Bowser
Unlock 2nd Marble: Complete the Egg Gallery
Unlock 3rd Marble: Complete the Egg Gallery
Unlock 4th Marble: Complete the Egg Gallery
Unlock 5th Marble: Get EVERY Gold Medal.