In Portal 2 the player returns as Chell, having been in stasis for several hundred years while GLaDOS and the rest of the Aperture Science facility have fallen into disrepair. As you play through the game, you might struggle but this Portal 2 Walkthrough can be your perfect companion to help you. After the huge success of the original game, Valve has brought back Chell in Portal 2 in an extended experience compared to the first game. Portal 2 is the sequel to the critically acclaimed puzzle/action shooter Portal.
