I can't find either the browser version or the downloadable version on your project page. 🤔Please publish at least one of them.
Hello, sorry for that it was a problem with itch.io, I uploaded the game.
I confirmed that the game is playable.
Since there's no way to tell whether the operator is telling the truth or not, it seems pointless to follow their instructions. However, after playing a few rounds, I still couldn't find the black box.
I thought it was an interesting experiment. 🙂