Portal 2's opening has one of the best video game jokes ever

Valve's sequel to its puzzle masterpiece brilliantly satirizes itself - and all video-game storytelling - with a single ...
Kotaku

Portal 2

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 ...