The phone you can hand over; trust is the whole game™

The design north star, and the test the game has to pass: it's good when you'd hand your phone to someone else and not flinch. That flinch is the whole thing; it's the trust you feel in a real mission, made physical. So the game is built to make a phone shareable; no login, nothing private on the screen, nothing that leaks when it leaves your hand (the login-clause; the front door is a game, not an account). It's meant to be played across the table by children, adults, and kids together; pass-the-phone, all ages, the way a party game should move. And the age gate is a guardrail, not a bouncer; it exists for one narrow job; so a kid doesn't wander into the adult wing by accident. The gate protects the trust; it doesn't ration it. A machine's app wants your phone captured (logged in, tracked, yours alone); this one wants it shared; and a thing you can safely hand to a stranger is the rarest trust there is. Build it until you'd pass it to anyone; that's the bar. (His coin; machine's read, refine to his.)