Chance wheel

The chance wheel is the main feature of The Big Board in Wario Land 4. It is a block with a constantly moving set of numbers from 1 to 6 on the face, and a blue button on the bottom where Wario can jump up and hit. It has many purposes to help Wario make it through the level. When Wario stands below it, a ribbon appears, showing what Wario could gain from a hit of the chance wheel. The numbers stop rolling when hit, and then that number of spaces is counted on the ribbon. It can land on various events including switching all dotted red lines to solid blocks and vice versa, giving Wario health, changing Wario to one of his forms, producing Dice (to throw), damaging Wario with a lightning strike, and dropping a Diamond. Chance wheels can be used only once before disappearing.

In the latter part of the level after hitting the switch, Wario can find a blue chance wheel known as a Goal Block, which can be used multiple times. At the end of the prize ribbon is the level's Keyzer; however, Wario must hit the exact number of ribbon spaces to obtain it.

On the Hard and S-Hard modes, the numbers spin faster, and the player is more likely to need a certain item to progress.