

Although GLaDOS, suffering from a phobia of birds, urges the robots to retreat, they succeed in shooing the bird out of the facility. Even though this fails, she sends them to inspect the old chassis anyway and murder whoever has taken it over, because the reassembly machines are failing.ĪTLAS and P-Body enter the old chassis room to find that the bird from the single-player campaign is making a nest in the chassis. P-body jumping through a portal with a Weighted Pivot Cube.Īs the facility continues to break down, GLaDOS tries to turn ATLAS and P-Body into "killing machines" by provoking and insulting them. After they explore several of her "exhibits", the disassemblers break down and she reveals that it's only been a week, all the humans are dead, and someone else has plugged themselves into an old GLaDOS chassis and is trying to take over the facility. GLaDOS reassembles ATLAS and P-Body, informing them that they are 100,000 years in the future, where testing is just a form of art. She then explodes them and brings them back for testing. For their final test, ATLAS and P-body are sent to unlock a vault containing hundreds of humans in stasis, since GLaDOS has determined that testing with robots (which can't die) just isn't the same as human testing, although she tells them there is still much work for them to do.

She eventually concludes that they simply lack the capacity to betray each other. Over the course of their testing, GLaDOS tries to drive them apart in various ways, only to fail each time. They are sent through a series of test courses designed to prepare them for the final chamber which takes place in the abandoned basement of the facility. After Wheatley is forcibly removed from control, GLaDOS comes to much the same conclusion, finally giving Chell her freedom (and her original Weighted Companion Cube).įollowing Chell's exile from Aperture Laboratories, GLaDOS begins testing on ATLAS and P-body. and decided that he no longer needed to keep Chell and GLaDOS alive for further testing, as the replaceable robots could serve in their place, leading him to try to kill his current test subjects. While Wheatley was in control of the Aperture Laboratories facility, he discovered the C.T.I. GLaDOS mentions that she had been working on the Cooperative Testing Initiative before Chell escaped, (it is assumed she means the second escape, when Chell escaped with Wheatley, as she says "It was nothing personal, but you DID kill me, fair's fair.", showing that she could not have meant the first time Chell escaped in Portal). ATLAS, P-Body and GLaDOS as Chell wakes up after sending Wheatley to space.
