Disorder is World 10-4 in Story Mode In Super Monkey Ball 2.
Several rectangular platforms are laid out in a chaotic fashion at different heights. The goal is on the platform in the upper right corner of the stage, and a few banana bunches are scattered throughout.
There is only one goal, the blue goal. Follow the platforms on the way down to the goal. It is helpful to use the mini map or the "View Stage" option in the pause menu to know where you are going.