@riverstorm It's the wrong way round in every emulator. I just learned to live with it so far, and play nintendo style, instead of sega style ;-)

@chip

As long as you stick to systems that use a directional pad and two buttons or less, you shouldn't have any problems whatsoever. Fortunately you have a pretty big variety there with nes, sms, pcengine, gameboy/color, gamegear, ngpc and just about every atari option, as well as a pretty big selection of arcade titles.