Ubisoft, the makers of the game Watch Dogs wants you to use your phone to hack any system. In their prank trailer, a shopkeeper takes on unsuspecting customers on an adventure of sorts through the street with their newly refurbished smartphones to try out a mystery app.

At a press of a button, the app turns lights out, opens luxury cars and knocks over ATMs. Pretty damn good prank. And too bad it isn't real. Watch Dogs launches on Tuesday, May 27.