Unlike in the first Mirror's Edge, upcoming reboot Catalyst locks core free-running abilities, such as the quick-turn and skill-roll, behind experience points and a skill progression tree.The departure in design has drawn criticism from some fans, who say they are unhappy with developer DICE's decision to not make core movement abilities from the first game available from the outset.The decision, according to DICE's senior producer Jeremy Miller, was made in order to help people get a better grasp of the different ways Faith can navigate the city of Glass."The RPG element is really about allowing the player to engage in the tools, because it is a unique way of interacting with the world," he said in an interview with GameSpot."We’ve got a different control scheme.