Yume Koujou: Doki Doki Panic

Yume Kōjō: Doki Doki Panic (夢工場ドキドキパニック) is a platformer for the Family Computer Disk System developed and published by Nintendo on July 10, 1987. It was developed in cooperation with Fuji Television Network for their event Yume Kōjō '87. The game was reskinned and rereleased in the West as Super Mario Bros. 2, as the original Super Mario Bros. 2 was deemed too difficult for Western gamers.