Yeah, i know about puzzle script. But you have only 6 buttons in puzzle script (let's forget about mouse for a second, ok? (i think with mouse that's possible to make, but that will be pain lol) ) : arrows, undo (you can't modify it), and action, so you can make really undo is undo and action is fake undo but... idk how to make that. Also, you know about "puzzlescript plus", yeah?
2 players... i think they just should move at same time and have different hats, that's it.
(that easily allows more that two players)
we probably should try to talk somewhere else. like discord?