Hierarchy is the 28th Expert stage in Super Monkey Ball 2 and the 57th Expert stage in Super Monkey Ball Deluxe. It also appears as the 167th Ultimate stage with continues and the 207th without continues.
This stage is considered difficult. It involves a long path leading up to a large platform. This platform has multiple platforms below it of the same edge size. They do, however, have increasingly larger holes in the middle as they go down.
To get to the goal, the player must drop from the holes and land on to the next platform. Make sure to angle the control stick well by pushing up-right or up-left then down-right or down-left. Repeat this strategy until you make it to the final platform. Try to be especially precise the farther you are along the stage since the platforms become increasingly narrower, allowing for less and less error. Once you are on the goal platform, roll carefully into the goal.