Super Mario Bros. (Game & Watch)
Super Mario Bros. is a Game & Watch version of Super Mario Bros. which appeared as part of the New Widescreen and Crystal Screen series, both of whom were predated by an extremely rare "special" Game & Watch shaped like Famicon mascot Diskun which was awarded to winners of the F-1 Grand Prix Tournament in Japan.
These versions of Super Mario Bros. are all essentially the same except for hardware (the Crystal Screen had a transparent screen, while the other two versions were more basic Game & Watch systems). The overall plot is the same as the console Super Mario Bros., but the game is shorter and simpler.
Mario must go through eight auto-scrolling levels without falling and losing a life. When the levels are cleared, Mario must repeat them in the next loop. The second loops and onward have enemies. Further, Lakitus throw hammers as opposed to Spinies. There are a total of nine loops of increasing difficulty. There are two types of levels; scroll screen levels and timer screen levels. In the scroll screen levels, Mario must travel a given distance displayed on the screen. In the timer screen levels, Mario has to go through the world within a given time.