I wanted to share a tutorial on making an effective Atari 2600/7800 controller out of a Sega Master System joystick. The controller can also be used to play games on C64, Genesis, Colecovision, and the Sega Master System. There's some Desert Falcon and Jr. Pac-Man gameplay to demonstrate the accuracy you can expect out of the modded joystick. Hope some of you can benefit from this:
https://youtu.be/SXN4silDFiQ