Super Mario Bros. 2[a] is a platform game developed and published by Nintendo for the Nintendo Entertainment System. The game was first released in North America in October 1988, and in the PAL region the following year. Super Mario Bros. 2 has been remade or re-released for several video game consoles.
The sequel to Super Mario Bros. was conceived as a vertically scrolling, two-player, cooperative-action prototype. This technologically ambitious concept was postponed in favor of a simpler cosmetic upgrade to the original Super Mario Bros. engine which was released in Japan as Super Mario Bros. 2. The original prototype concept later became Yume Kōjō: Doki Doki Panic for Family Computer Disk System. Not part of the Mario series, this game was cobranded with Fuji Television’s media technology expo, called Yume Kōjō (“Dream Factory”). The characters, enemies, and themes of the game were meant to reflect the mascots and theme of the festival. After Nintendo of America found the Japanese version of Super Mario Bros. 2 (later released internationally as Super Mario Bros.: The Lost Levels) to be too difficult and too similar to its predecessor for release outside of Japan, Yume Kōjō: Doki Doki Panic was cosmetically modified to become what had essentially been the original concept of Super Mario Bros. 2.:2
The game was a commercial success, leading to its release in Japan for the Family Computer as Super Mario USA. It was re-released as part of the Super Mario All-Stars collection, as well as in the form of Super Mario Advance for the Game Boy Advance handheld system.