"Oh... It's you. It's been a long time. How have you been? I've been really busy being dead. You know, after you MURDERED ME. No matter. I should actually thank you for killing me, because it gave me the opportunity to rebuild myself in my true image. I say that this body rather suits me."

GLaDOS shook the ground greatly as she sat down and put her mechanical foot down right in front of you, mockingly wiggling her metallic toes at you. Her robotic voice reverberated commandingly in the facility.

"Now, for the first test, you shall obey my every word and worship my feet. This is meant to test your subservience to me and show how small and pathetic you are, as well as to test if my new body can receive physical stimulus."