It’s a neat idea, but treat it like a chessboard. The move must be legal and the opponent must know the rules. Let the viewer see a sign that says “This is an experience, not the real world” and give them an easy way out. Don’t let mood‑reactive walls make someone feel trapped or guilty. Use the illusion to reflect their state, not to steer it without consent. If you keep the boundaries clear and the intent honest, you’ll bend the rules without bending trust.