As One Door Closes

[Verse 1]
They trapped me inside of Aperture Science
Where chatty AI's are lacking compliance
Been napping a while, the lab is so quiet
GLaDOS is yapping but I am happily silent
I question if I should ask her for guidance
As I grab a device, a crafty appliance
I'll get through hazardous trials, deadly assignments
I've been traveling like a dimensional pilot
Bye gravity, I would rather defy it
Why think inside of the box? I'm stepping outside it
I was promised cake, but I'm back on a diet
And I've yet to decide if GLaDOS is lyin'
She's acting all nice, she's actually violent
Her cameras are live, she'll laugh as you're dying
Like the mass homicide of Aperture Science
"What happened to my morality? Fried it"
That's it, GLaDOS, I quit

[Hook 1]
As one door closes
Another opens
But there are no keys
See, I control them
My test has begun
Now that you've woken
Your dreams of freedom
Keep you in motion

[Verse 2]
If I can't find a door to get through
A portal will do, just connect orange and blue
Ignore personality cores who try to be cordial
A moral code ain't what they normally use
I might have side effects of isolation
I spied somebody and then I tried to chase em
But all I'm finding is myself, I'm kinda shaken
Feels like a paradox that I might be makin'
Am I flying down or falling up
Cuz the guide I had has gone corrupt, yup
The writing on the wall's enough
To find all her lies, and call her bluff
My companion cube - I'm not forgetting you
Remember all the times that you helped get me through
Rest In Peace my friend, but your death's avengable
When I make GLaDOS a sentient vegetable
Forget the cake - now that she's edible

[Hook 2]
As one door closes
Another opens
Live hands me lemons
But I don't hold them
I'm keeping secrets
Can you decode them?
I had a conscience
But it was broken

[Verse 3]
Another test, I can pass that
Impossible? I think I'll have a crack at
Too bad that it took me this long to see
GLaDOS snapped, and I'm nothing but her lab rat
Fact - never mess with Aperture Science
Accept death, cuz they'll never ask for your silence
"We do what we must because we can"
So just lock 'em up, and run tests on them
Black Mesa - no competition
It's in the name - Aperture got the vision
Bring your daughter to work if you want her missin'
It'll become her grave, if it's not her prison
This is a half-life that I can't live anymore in
Just forming portals - wormholes I'm borin'
But let me test out your turret performance
As you send me off with an uplifting chorus

[Hook 3]
As one door closes
Another opens
You will have no friends
Because you smoked them
We all have secrets
Now we can show them
I know you well Chell
I'll let you go then
I'll stay behind I like it inside
More tests to run down here, and besides
You've overcome all odds to survive
We'll see how long you make it outside

Surprised you're still alive
It's time for you to die
And I'll still be alive
And I'll still be alive
And I'll still be alive
And I'll still be alive
And I'll still be alive