Experience the PlayStation 3 with pioneering integration of Steam features, allowing for the first time cross-platform gameplay between console and PC owners. Beyond the epic single-player campaign, the title features a completely unique cooperative mode (co-op), where two players control the robots Atlas and P-Body, solving puzzles that require absolute coordination and the use of four portals simultaneously. With the introduction of new mechanics, such as special gels that affect speed and bouncing, Portal 2 offers a unique mental challenge that remains unmatched in design and atmosphere.