Whee~

"Good work getting this far, future-starter! That said, if you are simple-minded, old, or irradiated in such a way that the future should not start with you, please return to your primitive tribe and send back someone better-qualified for testing."

"I think I liked the murderous one better," she says. But nevertheless, onward.

Down the elevator goes. "To ensure that sufficient power remains for core testing protocols, all safety devices have been disabled. The Enrichment Center respects your right to have questions or concerns about this policy."

And up ahead's the most banged up chamber so far, with an orange portal sorta lying there.

And Wheatley hanging from the ceiling behind half a wall. "Oh, brilliant! You did find a portal gun!"

"Yep," she says. "Only the blue half, though."

"Well, that's good enough for us, you got the orange one there—pop a portal on the wall behind me and I'll meet you on the other side of the room."

Boop!

Wheatley turns around to look at her. "Okay, listen, let me lay something on you here. It's pretty heavy."

"Go on."

"They told me never—ever—ever to disengage myself from my Management Rail. Or I would die. But we're out of options here. So... get ready to catch me, alright, on the off-chance that I'm not dead the moment I pop off this thing."

"...All right."

"On three, then. Ready? One... two... THREE—that's high, that's too high, isn't it, really, that—" he says, backing off a bit.

She waits.

"Alright, going on three just gives you too much time to think about it. Let's, uh, go on one this time. Okay, ready? One—" He disengages—"catchmecatchmecatchme—!"

She catches him.

"Oh thank you I thought I was gonna die." Pause. "I... am not dead! I'm not dead!" He starts laughing.

"Congratulations."

A hole opens up on a wall and a metal stick emerges. "Plug me into that stick on the wall over there. Yeah? And I'll show you something. You'll be impressed by this."

"...sure, all right."

She goes and puts the ball on the stick.

"Ummmm, yeah, I can't do it if you're watching."

...she turns around.

There are a few beeps and: "Alright, you can turn around now!"

Aaaand what did he do?

"BAM! Secret panel! That I opened. While your back was turned."

There is indeed a secret panel opened on the wall leading to some possibly-familiar behind-the-scenes metal catwalk.

"Congratulations."

She peers through.

The catwalk turns left towards a... very serious-looking door. The space around it is rather constrained by the test chamber; there is no ceiling above and only emptiness below but the walls are very snug.

The stick pops Wheatley out and he asks, "Can you pick me up?"