Portal 2 is the critically acclaimed sequel to the revolutionary puzzle game Portal. Armed with the Aperture Science Handheld Portal Device, solve increasingly complex physics-based puzzles in test chambers designed by GLaDOS. Features an expanded single-player campaign with new characters including Wheatley (voiced by Stephen Merchant) and Cave Johnson (J.K. Simmons), innovative puzzle elements like laser redirection and propulsion gel, hilarious dialogue and dark humor, deeper story revealing Aperture Science history, and a separate two-player cooperative campaign. A masterpiece that builds upon the original with more content, refined mechanics, and unforgettable moments. Winner of numerous Game of the Year awards.