Cores and turrets on every stage Wouldn't you like to escape this cage? Come to us and you'll be sure You're not safe in aperture This is aperture! This is aperture! Test subjects die once they're in sight This is aperture! Everybody hit the floor! Take a seat till the neurotoxin makes you die! It's not safe, we're sure You're not safe in aperture I'm the one that's keeping you alive Because, you know, it's bloody hard to survive! I'm the one that wants to test Maybe at the end I'll let you rest! This is aperture! This is aperture! Aperture! Aperture! Aperture! Aperture! You're not safe, in this place All of us warn you of the big white face You're safe, don't you struggle now Don't you want your nice big cake? Down that corridor, running to the exit door She's waiting there for grab and kill you! Run! This is aperture! White and grey And slightly blue! Want some cake? Well, none for you Portal here, portal there, throw a turret in the air! Watch for the bulllets that'll graze your hair Everybody run! Everybody run! You're not safe in aperture I'm the bot with the adorable face Ready to shoot you in your place! I'm the reject that gave you a scare! I'm the voice that you hear in there! I'm the head of this great place And I just bought some rocks from space! This is aperture! This is aperture! Aperture! Aperture! Aperture! Aperture! Aperture! Aperture! Testing subjects usually die Science isn't fun without cianyde That's the drill that you may die As you're not safe in aperture You're safe, don't you struggle now! Don't you want your nice big cake? Glados the giant may fill your room with neurotoxin Shoot you with a rocket turret Turn you in to burning mush! This is aperture! Everybody run! You better escape to a much saffer place Our dear chell is master of the portal gun Everybody help her in her flight Now! This is aperture! This is aperture! Aperture! Aperture! Aperture! Aperture! You're not safe, in this place All of us warn you of the big white face La, la, la, la la la, la, la, la la la, la, la, la la la, la la la, la, la