The game doesn’t make it clear what to do at all, and the explanation at the start doesn’t make sense either. I guess the two characters aren’t supposed to meet? You can stand on the button, but I was unable to do anything beyond that. It doesn’t seem like there’s a way to leave the screen, so I wasn’t able to actually play much of the game due to that.
I will say that it’s impressive you were able to leverage NWJS to make something like this, because it’s not a game engine whatsoever, but I’d really recommend picking up something like Godot, Unity or Game Maker in the future because the filesize of this project is absurdly large, and the game does not feel responsive at all.