Currently the game runs about four hours," she told us. However, it seems it may take some getting used to, as one of our reporters was reduced to a gibbering wreck as he attempted to get to grips with it. Still, Swift was apologetic and reassuring about the difficulty curve, saying she'd rushed the tutorial to get us to the action. "In the game we take you very step by step in terms of being able to use your portals," she added.