Carl Williams writes, "Back in the day, consoles came with two controllers and at least one game. Depending on which version of the Nintendo Entertainment System you purchased, you could have gotten as many as three games packed in. Most people got two, Super Mario Bros and Duck Hunt (and the light gun as well in the box). Considering there were two controllers in the box it was slightly confusing why there were no two player simultaneous games included. Sure, Super Mario Bros offered two player alternating gameplay but it was not quite the same. Thanks to a fan, we can now enjoy Super Mario Bros with Mario and Luigi on the same screen at the same time. There are problems with this of course."