Notch is the 5th Master stage of Super Monkey Ball 2 and Super Monkey Ball Banana Mania, the 275th Ultimate stage without continues in Super Monkey Ball Deluxe, and the 125th Marathon stage of Super Monkey Ball 2 in Super Monkey Ball Banana Mania.
This stage includes a long platform leading up to a moving ovular object with two large holes taking up half the width of two opposites sides of the stage. The goal is on a platform high enough that when the oval is on its side, it is just in line with the platform. The ovular object moves clockwise at a fairly low speed.
To get to the goal, you need to be on the side of the oval that allows you to go up the highest you can. Get on the ovular object at about 43:80 seconds from the left, aiming to the right to get around the first notch, then move quickly to the center of it, and move along slowly towards the center. Stay there, so you can get up to the goal platform. There is a very slight height difference between most of the oval and the goal platform, so you may want to be a bit back from the platform when you get to the optimal time. Then, quickly go forward to get on to the goal platform and into the goal.
Changes in Banana Mania
The moving object starts at a different angle, making it where the player can naturally reach it at a good time to start crossing.