Super Mario Bros. is a 1985 platform game developed and published by Nintendo for the Nintendo Entertainment System (NES). It is the successor to the 1983 arcade game Mario Bros. and the first game in the Super Mario series. It was originally released in September 1985 in Japan for the Family Computer; following a US test market release for the NES, it was converted to international arcades on the Nintendo VS. System in early 1986. The NES version received a wide release in North America that year and in PAL regions in 1987.
https://en.wikipedia.org/wiki/Super_Mario_Bros.