@substring, lol. Valid point.
I know it is probably taboo, but I'm not a huge fan of those games. I built this for the nostalgia of playing Atari 2600, Nintendo, and some of the arcade games of my youth. At this time, I'm not a huge fan of the games that required 6 buttons.
If that does change, I could easily add the extra buttons. They are just sitting in a box.