Stepping Stones is the 13th level of Advanced in Super Monkey Ball 2 (42nd in Super Monkey Ball Deluxe), the 3rd stage of Under the Ocean in Story Mode (5th in Super Monkey Ball Deluxe), the 102nd stage of Ultimate without continues (82nd with continues).
This stage features rectangular platforms set in a descending circular pattern. The is also a starting and an ending rectangular platform. There are holes set up diagonally in the centers of these platforms. The left side has wider platforms. The goal is located on the final platform.
To get to the goal. Fall down and roll beside the holes. Go to the left side for an easier time beating the stage. Roll and fall inwardly at a somewhat high speed. Brake enough to avoid falling out. Repeat this pattern until you make it to the goal; be careful though when rolling into the because the goal is located along the diagonally set up squares.