Super Mario Bros. 3 is a 2D action-adventure platform game for the Family Computer and Nintendo Entertainment System. It is the fourth installment in the Super Mario series and is recognized as the third in Japan. Being the first game in the series since Super Mario Bros. not to derive its gameplay from another game as well as to release in all regions, Super Mario Bros. 3 retains the same level-based platformer mechanics of previous titles. These core mechanics are iterated upon, featuring greatly expanded levels, several new power-ups, new enemies and bosses, a more fleshed-out multiplayer mode, a world map, and many optional levels and secrets. The game has gone on to become one of the most influential titles for the Super Mario franchise, and several elements introduced in this title have since become mainstays in the 2D games, including landscape-themed worlds, the Koopalings, airships, and Toad Houses.
The game features a unique stage play-esque aesthetic, with objects being bolted to the background or suspended by ropes and casting drop shadows. Additionally, the ends of most levels feature Mario traveling "offstage" on a black backdrop to complete them. This led to a long-standing rumor that the game was a stage play put on by the Super Mario cast, an idea later confirmed by series creator Shigeru Miyamoto. Some of these aesthetic choices were changed or removed in remakes of the game.
