Alternate Versions
Mario Bros. (Famicom/NES)
A port of the Arcade game was one of the earliest games on the Famicom in Japan. As a result, the short demos showing each enemy's movements was removed and a number of bonus stages were taken out. The sprites were scaled down and a sprite flickering effect was used to display so many on screen.
Classic Series: Mario Bros.
A second version, released for the NES exclusively in Europe in 1993, reinstated all of the elements from the Arcade game that were missing from the original NES version, making it an almost pixel-perfect port.

