This has been a long time in the making but I released an adapter to allow people to use other joysticks or joypads on the MZ700 without modification of the Game code. That is important because there is only one other product on the market similar to this and it requires you to modify the game code to use that adapter. Mine is plug and play. Anyway, I recorded a video showing it in action and you can buy it from the shop CLICK HERE ..