


GLaDOS reactivates a room full of Personality Cores and re-captures Aperture Laboratories, filing a letter to Chell, informing her that she is still alive and "not even angry" about Chell's actions-but not before extinguishing a candle on the cake, which was not a lie after all. Chell is dragged with her, and ends up among GLaDOS' remains on the parking lot in front of the Aperture Labs entrance, only to be dragged back inside and placed in stasis by the Party Escort Bot.ĭespite GLaDOS' apparent destruction, only a part of her was destroyed. Before the neurotoxin can kill her, Chell destroys GLaDOS, who is apparently sucked through a portal to the outside with parts of her generator.

Chell takes advantage of this and uses portals to redirect the rockets back at GLaDOS, detaching and incinerating her Personality Cores one by one. She notes that the Morality Core must have had some ancillary responsibilities, and that she cannot shut off the Rocket Turret in her control room. GLaDOS, now unrestrained by the Morality Core, begins to flood the Enrichment Center with neurotoxin. GLaDOS' remains on the parking lot, shortly before Chell is dragged away by the Party Escort Bot.

Originally, she was rejected as a test subject, but Doug Rattmann altered the testing order, having correctly guessed that Chell's extreme tenacity might allow her to defeat GLaDOS. According to the psychological profile in her personnel file, Chell is "abnormally stubborn" and refuses to ever give up, no matter how daunting the challenge. For her Science Fair project, she made a potato battery similar to one she had made in school one year prior to that. Although Chell's origins are unknown, she was definitely among the people present during GLaDOS' activation in 200-, as GLaDOS took over the facility immediately afterward information revealed in Portal 2 implies that Chell was the child of an Aperture scientist and was touring the facility on Bring Your Daughter To Work Day when GLaDOS took over.
