Playing co-op on the Genesis is a common occurrence, but it’s an entirely different situation when two consoles are involved. Take the first-person shooter Zero Tolerance, for example. How would you like to play it on two separate Genesis machines? Or what about using two Nomads? There actually was a cable offered for just such a thing back when the game was released, but those are now few and far between. Making one of your own isn’t all that hard though, and staff writer Sebastian Sponsel shows us how in the latest installment of Tech Talk.