We can also build dual controller :
We've just have to follow one of the plan found on some websites, I've choosen the "ConsoleCable" model :
And here is the modification :
And now, "Crazy contests" will be for me !!!
P.S. : this plan seems not working with some Genesis emulators, but no bugs repoted on MAME32.
feel free to send me a e-mail to : bot at mattt.org