Super Mario Bros. 2 (USA)

Super Mario Bros. 2 is a platformer game released for the Nintendo Entertainment System in 1988. It is not a direct sequel to the original Super Mario Bros. released in the United States in 1985; rather, it is based on the Family Computer game Doki Doki Panic, retaining all of its levels and enemies but replacing its protagonists with characters from the Mario universe. The Japanese Super Mario Bros. 2 is a direct sequel to the original Super Mario Bros., but was not released to American audiences at the time since 94% of a 250-member test group found the game too difficult. By the same token, the North American Super Mario Bros. 2 was later released in Japan as Super Mario Bros. USA.