Super Mario Brothers

From Zelda Wiki.org

Super Mario Bros. is a videogame, and it is one of the Mario Bros' more popular experiences. Not only that, but is Bowser Koopa's first appearance and first of many annual Princess Peach kidnaps.

Super Mario bros. also refers to the term used to describe Mario and Luigi at the same time, rather then saying Mario & Luigi all the time. In a similar sort of contrast, Wario and Waluigi are (unofficially) occasionally referred to as the "Wario Bros".

Mario bros not only introduced Bowser and Mario, but also introduced a whole range of guys who would soon be appearing in later and better games, such as Spinies, Lakitus, Goombas, various colours of Koopas, Buzzy Beetle, Paratroopas and so on.