World 28 is a cloud world with floating platforms resembling Bouncy Cloud Boomerangs from New Super Mario Bros. U in Dr. Mario World similar to World 15, except it takes place at night. The first area is available as of 11 PM PT on May. 6, 2021, while the second area, challenge stages and special stage are available as of 11 PM PT on May. 20, 2021.
Stage layouts for scrolling stages
Stage layouts in previous versions