Portal 2 is a puzzle-platform game and a sequel to the acclaimed Portal. Players control Chell, who teams up with the quirky robot Wheatley to navigate a series of intricate puzzles crafted by the A.I. GLaDOS. Set within the Aperture Science Labs, the game explores themes of betrayal and friendship as Chell strives to escape while unveiling the facility's secrets.
Sequel to the acclaimed Portal (2007), Portal 2 pits the protagonist of the original game, Chell, and her new robot friend, Wheatley, against more puzzles conceived by GLaDOS, an A.I. with the sole purpose of testing the Portal Gun's mechanics and taking revenge on Chell for the events of Portal. As a result of several interactions and revelations, Chell once again pushes to escape Aperture Science Labs.