Dream Uneven Bars
From the Super Mario Wiki
The game involves players swinging from bar to bar to earn points. The point totals are increased by the amount of times the player swings on one bar. There are two types of bars: green bars, which the player can earn up to four points on, and pink bars, which multiply the amount of points earned. At the end of the stage, the goal appears; landing on it earns the player 10 points. By grabbing onto other players while they are swinging, the number of points per swing is multiplied.