Super Mario Bros. 3 is a two-dimensional, side-scrolling platform game in which the player controls the on-screen protagonist: either Mario or Luigi. The game shares similar gameplay mechanics with previous titles in the series—Super Mario Bros., Super Mario Bros.: The Lost Levels, and Super Mario Bros. 2—and introduces several new elements. In addition to the running and jumping moves found in past games, the player can slide down slopes, pick up and throw special blocks, and freely climb up and down vines. In addition, with power-ups, Mario can fly and float. The game world consists of eight “kingdoms” that are each subdivided into multiple levels. The eight worlds feature distinct visual themes; for example, the second world, “Desert Land”, contains sand-covered levels with pyramids, while the levels in the fourth world, “Giant Land”, are populated with obstacles and enemies twice as tall and twice as wide as those in the other worlds.