Splitting this off into its own thread …
It seems that perhaps Grizzards is the first 2600 game to use Joy2b+ controllers. I thought I'd open up a thread to discuss them a little.
I'm just gonna mention that RetroGameBoyz makes lovely NES-style Joy2b+ game pads, which is what I use, although I believe there are a few other sources out there as well.
Getting Joy2b+ support into your game
As we all probably know, the basic CX-40 joystic