Genesis pads (and also Master System pads) are more or less compatible with the Atari 2600 controller connectors:
Ooooh yeah, that's right.
I knew the were compatible with some other system. I just couldn't remember what.
I had a Gravis gamepad system for PC, that used the same jack as the Genesis/Atari/Commodore, which is probably at fault for my confusion. I never tried actually plugging the Genesis pads into that thing, but it was always in theback of my mind.
