Modding a Cheap SNES Gamepad for Neo Geo/Supergun

My Neogeo controller wasn’t working and the fix for it involved some PCB surgery that I had no idea how to perform. While looking for alternatives, I saw that some people were able to mod a SNES pad to work on a NeoGeo. It looked like something I could do so I go through the process of getting that set up.

AtariAge Official NeoGeo Thread: https://atariage.com/forums/topic/223...

Attributions:
NES & SNES image: Wuffyz at English Wikipedia [CC BY-SA (http://creativecommons.org/licenses/b...)]
NeoGeo Arcadestick: https://commons.wikimedia.org/wiki/Fi...

Resources I used for the mod:
http://www.mmmonkey.co.uk/snk-neo-geo...
http://mvsneogeo.blogspot.com/2012/07...
   • $2 Chinese SNES Controller to Arcade Stick...  

Affiliate links:
Genesis Gamepad Transparent Blue (Does not work on PC): https://amzn.to/389DeNW
Genesis Gamepad Transparent Black (Does not work on PC): https://amzn.to/31BJCeG
Brook Super Converter. Use PS3/PS4 Controller: https://amzn.to/385BjtH
NeoGeo Controller Extension Cables: https://amzn.to/2OA6lSR
SNES to USB Adapter: https://amzn.to/3bg9pgJ

Non Affiliate Links
Genesis to NeoGeo adapter V2: https://www.r2tronik.com/en/supergun/...
Genesis to NeoGeo adapter V1 (I got this one because it was cheaper): https://www.r2tronik.com/en/supergun/...

This is the gamepad I modded. I strongly DO NOT recommend it. It does not work well at all. I’m only displaying it here so you can rule it out if you’re looking to do a similar project. This is not an affiliate link: https://www.amazon.com/gp/product/B07...