As The Impossible Room contains a special challenge right at the beginning, here is a last chance to have another try without the help of the walkthrough. Think about this, and try again:
No idea? Okay, here is the walkthrough:
| The portal conventions
within this walkthrough are: Blue portal = Enter | Red portal = Exit This helps simplifying the description. Of course you are free to shoot your portals the way you like it best. |
01 / The Impossible Room - 1
If you have abandoned all hope after looking around, regain it by what you hear. Jimi would never lie to you. Turn left and walk to the corner. This activates a hidden motion detector, which turns on a light on the floor. What is good for one corner, is equally good for the other corners, too. Walk to each of them to turn on all four floor lights.
Walk to the center of the room. This activates another motion detector, lowering a section of the floor, reveiling the basement of The Impossible Room.
02 / The Armoury
The right door (after getting down the stairs) is unlocked, giving you access to the armoury. There is just one thing for you here: grab the portal gun from the pedestal. That's all you can do down here at the moment, so return to The Impossible Room.
03 / The Impossible Room - 2
What has been turned on, has to be turned off again. Return to the four corners of the room, switching off the lights on the floor by walking over them. This unlocks the Planet Salvation Room. Go downstairs and enter the left room.
04 / The Planet Salvation Room - 1
On the left you see something behind a metal grate. Approach the large button beneath it and push it to save the world before you proceed. The grate opens and reveals the air restraint system which has been switched on by the push of the button. While returning to The Impossible Room, you want to ponder of what kind of air an air restraint system might protect - and from what?
05 / The Impossible Room - 3
Something has definitely changed here - did you discover it? Your touch of a button did not only activate the air restraint system - it also opened a large skylight in the north wall. Through it, you enjoy a beautiful, star-filled night sky, and in the middle of it - the moon. Why not shoot a red portal at it?
06 / The Planet Salavtion Room - 2
Now the time has come to open the wormhole. Walk down to the Planet Salvation Room. Shoot a blue portal anywhere at the walls in it and think of the air restraint system. Because of your diligenece and sense of responsibility Earth is safe - the wormhole you just opened will not let the atmosphere escape to space. Take a deep breath and walk through the portal.
07 / The Moon
Don't waste any time with toughts of how you can breathe and won't freeze your butt off here. It is all in the functional range of the air restraint system. Turn right, and - in short distance - left again. Walk along till you spot the blue shimmer of the teleporter. Before you approach it, somewhere to the left there is a weighted companion cube, sitting on the floor behind a rock. Don't miss it, otherwise you will have to return to the moon through The Planet Salvation Room later on. Holding the cube, step through the teleporter.
08 / The Impossible Room - 4
By taking a tiny detour via the moon, you got from the lower section to the upper section of The Impossible Room. Place the cube on the floor button and be the first person to leave The Impossible Room without loosing your mind.
You did well, test subject.
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