Just in response to the OP because this thread is too long to read. Why not just download an emulator? I hate when later aged consoles try to push off old game that I've already payed for just for the convenience of playing them on my 'new' console. Xbox live Arcade is infamous for this.

Just download an emulator(for ANY console, not just Nintendo), download appropriate Roms, plug in your xbox 360 wired controller or wireless controller adapter into your computer's USB slot, and play old games to your heart's content. For free - minus the cost of the controller(I think xbox 360 wired ones go for $30 which is much cheaper than a console)