Use a program like JoyToKey or the gamepad mapper within the emulator to set up your controller. Related ROM Hacks and Fan Projects

Since the classic Flash version is dead, follow these steps to play the definitive edition:

Developed by , Super Mario Bros. Crossover is a fan-made Flash game (later ported to HTML5 and other formats) that takes the classic 1985 Super Mario Bros. gameplay and flips it on its head. It is essentially the original NES game, reprogrammed to allow you to play as characters from other iconic NES titles.