I ended up taking it back to the store and they replaced it with one that works fine. It definitely wasn't the controllers because they are both working great now. I assume it was the connections on the board, but without a soldering iron I couldn't do anything about that anyway. Thanks for the sugg...

It could be the connectors on the inside, I've seen it before. Spill some soda or water on the system and clean it up but all that leaked down in there was left. All these years later and you have a clean system outside but several pins rusted out on the inside. I've been thinking that too. I saw o...

Oh, sorry. I read this late last night, I didn't realize in the first post you said you already exchanged the controller for another one and still have the same problem. I know you said you checked the controller port pins and that they weren't bent. But take a look at them again and see if they lo...

It may not be just the controllers. Check to see that the pins on the genesis, where the controllers go in aren't bent or damaged. Also, although somewhat related, there are a few games with some weird compatibility issues. Golden Axe 2 doesn't like the six button controller. So its a good idea to ...

Sounds like a problem with the controller, no need to have to replace the entire lot. If it comes to it, maybe get them to just replace the controller. If you're up to it, you could take the controller apart and clean the contacts with alcohol. I'll give that a shot. I tried it on the last controll...

Damn never seen this problem. Maybe the seller you are buying from is giving you defective controllers? Do you have any other controllers to use? No, I don't sadly. I'm going to bring the whole console back to the store if I can't figure it out. See if they will just replace the whole thing. I know...

sp957 wrote:Have you tried different games?

Like if you were to play Street fighter or mortal kombat, would your fighter keep jumping?

I've tried Sonic 1 and 2, both times he just looks up. I've also tried Ecco and he just swims to the top of the screen and stays there.

I didn't know how to title this one... So I bought a Genesis model 1 yesterday and when I started playing it seemed like the up button was stuck. I took the controller apart, re-seated everything, put it back together and the problem was still there. So I took the controller back and exchanged it fo...

I was just talking with him... Things like this make life seem so fragile. I don't know what else to say.

RIP Breetai. You will be missed.

+1 to ZenErik

Bought a JPN Saturn off him. Couldn't have gone more smoothly!