Hello!! I have decided to do @griffpatch 's multiplayer tutorial, and so I'm going to share every episode as I do them. Feel free to backpack or copy any of the code to use in your own projects, I'm totally fine with it! Backpack the "Cloud Player" sprite if you want to add the multiplayer code to your own platformer!
@griffpatch Here's the link to his multiplayer tutorial, if you also want to do it: https://www.youtube.com/playlist?list=PLy4zsTUHwGJIw6-ra80IMuxiRW4XHiGqf