Speaking of Genesis controller on 2600...
I picked up a 7800 with two 7800 joysticks. Neither of the controllers worked properly- on each one, some of the directions and a button didn't work. I decided to mod an NES controller to use on 7800 per some instructions that I found online. The mod was really tough- lots of little burns on my hands, but I got it done. When I tried it out on the 7800, I discovered that exact same deficiencies were present in the new Nes/7800 controller as had been present in the 7800 stick. I had used the cable from the 7800 joystick, which I then figured to have shorts in it. I could even get some buttons to work by manipulating the cable. I tried to re-splice the cable together, cutting out the shorted area, but no dice. The project seems to be permanently shelved, because I do not want to acquire a new cable/ butcher a genesis 6-button pad (some kind of problems keeps you from using a Genesis 3-button cable.)
Long story short, has anyone found a decent 2-button solution to 7800 controller replacement? As it stands, I still can't play Pole Position 2 or Rampage. I know that I could mod an SMS controller, but I couldn't bring myself to cut one up...
If not, I'm aware that I'm not missing out on much with these two games. Another mod job would take 10x as long to do as I would spend playing either of those games.