Mad Rings is the 16th level of Advanced in Super Monkey Ball 2 (45th in Super Monkey Ball Deluxe), the 6th level of Under the Ocean in Story Mode (10th in Super Monkey Ball Deluxe), and the 105th level of Ultimate without continues (85th with continues).
The layout is somewhat linear as there are only paths facing straight from the starting point. There are some rotating rings on the way, which can hit you out of the field. There are three Goals, a blue goal, a green goal, and a red goal. The rings revolve around the platforms holding the goals. The rings get faster the closer they are to the red goal.
This goal is considered easy to obtain as the ring moves slowly. Start rolling right away, but make sure not to roll too fast because, otherwise, you might get knocked off the stage.
This goal is considered a bit hard to obtain. Roll immediately to the side and past the blue goal, and move at a moderate speed to reach the green goal. This ring moves a bit faster then the first one, so be careful. There are a lot of bananas here.
This goal is on the farthest platform of the level, surrounded by the fastest spinning ring, and has many bunches of bananas to collect if you are successful. It is considered difficult. Roll immediately along one of the sides until you reach the red goal platform at a fairly fast speed, and you should make it to the red goal.