Bach explained, "We have asynchronous play in the multiplayer component...an asynchronous connection where your actions will affect my world." One of Faith's numerous objective types tasks her with hacking a billboard to eliminate the corporate advertising presence from the city of Glass. In doing so, your hacked billboards can also appear in your friends' games, giving players the opportunity to put their persistent stamp on more than more than one world. When setting up for a Dash race, you'll see your friends leaderboard scores imprinted on the objective in your game.
"Players do not always have time to play together at the same time, especially if they're not in the same room," said Bach. "But when I play my game, your game should affect mine." The Mirror's Edge team's early discussions about synchronous multiplayer didn't get very far. "We talked about what would happen what would happen if we put other players in your world. Well, you'll probably get a lot of a**holes. Trolling is a big part of the gaming community. Some find it very funny, others not so funny. We tried to separate it so it's people you want in your world, but they will not be able to mess with you. They'll be able to affect it."