Super Mario Bros. 2 was released in 1988, and Doki Doki Panic, the game-sake of the game, was release 1 year before Super Mario Bros 2 was. Super Mario Bros 2 was only released in the USA, and Doki Doki Panic only in Japan. But then, Super Mario Bros 2 was known as Super Mario USA, but it was just Super Mario Bros 2. Super Mario USA was released in Japan.
Nintendo, and @_Pi.
