What about taking an SNES controller extension cable and splicing it to an Atari controller extension cable? Would that work? I'm just trying to figure out a cheap way to get another controller to work on my 7800. I don't need 2 buttons to work, because I don't have any games that require 2 buttons. I have an extension cable for a playstation and an snes. If this would work, I could just buy an extension cable for the Atari and splice it to the SNES extension cable. Actually, I have several Atari joysticks, and I could use the cord from one of those if it will work.