Ok, some questions about the adapter.
I see you just have to connect 6 pins for each joystick (4 directions + fire + ground), all fine and good.
But some of those games have 2 button support (Super Tennis Champs for instance). There's no way to make the extra 2 joysticks use a 2nd button?
Also, will this adapter/cable work with Mega-Drive pads without the +5v pin connected?