This mission in Erie was designed for elite operatives. They were busy. You start at Warner Theatre. In plain terms: a 2.5-hour team spy game on foot, played on your phones. You will see Erie. You will also see a side of your teammates that no dinner party ever revealed. You do not need to be good at puzzles; you need people willing to have opinions, loudly, on a street corner. There may or may not be a double agent on your team. Step-free mapped paths all the way: 2.8 km, 4 stops and about 2.5 hours, at whatever pace your team likes. No guide, nothing to download. Somewhere, HQ is filing your mission report under 'surprisingly competent'. You take home the photos to prove it. Who it's for: friends, couples and families with teens; and private groups, from bachelor and bachelorette parties to work teams and active over-55s. Book a private game for 1 to 8 players on a date you choose; a team of one works too. Bigger groups play as several private teams.