*This project is unstable!* Use arrow keys or wasd. You can connect with one other person. (that's it) this is a testing project. There are only 2 slots. Flaws: Two people can take the same slot if 3 or more people join. Yes, I know it has some bugs.
It is similar to my catwalk project. I got the code from here: https://en.scratch-wiki.info/wiki/Creating_a_Multiplayer_Game#Online_Multiplayer The thumbnail for this project is not showing the "unstable" text in my shared projects and profile. [I looked at the project api.] Thumbnail update 2/20/21: Fixed.