Swing Bar Long is the 18th Expert floor in Monkey Ball, Super Monkey Ball, and Super Monkey Ball Banana Mania, as well as the 27th Expert stage in Super Monkey Ball Deluxe and the 137th Ultimate stage with continues (177th without continues) and the 60th Marathon stage of Super Monkey Ball in Super Monkey Ball Banana Mania.
This stage features a long platform that tilts back-and-forth. It tilts a very strong amount. There is a line of single bananas along the center of this platform. There are two small, square-shaped platforms adjoined to this tilting platform. One of these platforms is the starting position, and the other one has the goal.
To get to the goal, roll immediately onto the tilting platform, and then push up against the platform. Once it is about impossible to prevent yourself from falling off of the platform due to gravity, push to down-right on the control stick. Release it once the platform starts tilting the other way. Then, roll along the path, and then start pushing up against platform once it is tilted to the other side. Once it is about impossible to prevent yourself from falling off of the platform, push to down-left on the control stick. Release it once the platform starts tilting the other way. Repeat this process until you make it to the goal.