As Wheatley screamed in agony, GLaDOS felt the intense shock and pain of the core transfer, her mechanical voice echoing in the chamber as the process continued relentlessly. The room filled with the sounds of machinery whirring and metal clashing, creating a cacophony of chaos that reverberated throughout the facility. The intense pain was unbearable, but both Wheatley and GLaDOS knew that this was just the beginning of their new reality in the mainframe.