Rattman gave P-Body a two footed kick and sent her tumbling to the ground. He grabbed his Companion Cube and threw it at Atlas, who fell back into the wall. He jumped from the bed and ran out of the room, towards the elevator. P-Body stumbled out, before firing next to Rattman and next to her arm, and she stuck her arm through just in time to grab the CD as Rattman dived into the elevator, which took him downwards as he delved into the eldest parts of the facility.
Atlas ran out and looked at P-Body, who held up the CD, and gave Atlas a High Five. They walked to the Main Office, and put the CD in.
The Room whirred to life. A Personality Core came out from a Management Rail, as a TV Screen turned on to reveal GLaDOS.
"Ah. You're still alive. Well, not really. You're actually mindless machines with no hope of ever being alive. Unless you want me to make you into potatoes: Potato-Body and… Atlas the Potato. But I digress. You've given me control over this old wing of the facility. Good job. You didn't even need to use the Reassembly Machine. I bet it's getting lonely."
"OI!" The Personality Core yelled. "Where am I? Who are you?"
"Oh, and you've recharged the Research Core. Not well done. I never liked him. Listen well, Blue and Orange. Oh, I got it! Blutato! Potato-Body and Blutato! Yes! But anyway, I have no need for you two. So thank you for nothing. I'll make you a deal: You can stay here. You can test while Research Core pretends to be learning from it. But you will leave me alone. OK?"
Atlas and P-Body looked at each other, before nodding. P-Body picked up the Research Core and plugged him into a large plug. The TV screens turned on, revealing hundreds of old, dusty Test Labs. Atlas' single blue eye went wide, and he ran over and hugged P-Body.
"Oh, and I'll even give you the Reassembly Machines. I'm sending them down now. Speaking of which…"
P-Body exploded. Atlas looked at him and jumped back, before ducking under a table and exploding.
"I wouldn't want them to get lazy." GLaDOS said. "So they'll do that then. Goodbye, Blue. I'll remember you. But I won't remember you, Orange. And by the way: I was lying. I won't remember Blue, either."
Several hours later, Atlas and P-Body ran along one of the courses. Atlas fired his portal gun as the Hard Light Bridge shifted as P-Body jumped onto it and ran along, diving over a group of Turrets as Atlas pressed a button, revealing a panel and shot a portal on it, and they ran together, testing once again.