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Ignore the fact that you’ve gone straight to Chamber 11 from Chamber 6 (it’s all part of the story, so just roll with it).

Get your first portal on the chequered panel in the middle of the floor and then the next portal underneath the transportation beam in the far left corner of the room. Step into the beam until you reach the ceiling and then fire a beam on the slanted wall opposite you.

This’ll cause you to fall through and land on a platform holding an Experimental Cube. Pick it up and carry it to the left-hand corner where the laser beam is powering up the transportation beam. Set it down so it’s obstructing the beam, drop a portal nearby and then walk through it, this’ll drop you back at the top end of the room.

Stand over the edge near the drop (leading to the laser beam) and set a portal on the slanted wall to your left (making sure there's still a portal on the slanted wall on the top half of the chamber).

Walk over the jump plate and it’ll carry you through the portals and over to the Displacement Cube (haven’t seen one of those in a while). Pick it up and then set it down beside the Experimental Cube.

Set the Displacement Cube down in front of the laser beam, fire a portal into the wall where the beam is now hitting and grab the Experimental Cube. Jump through the portal with the Cube in tow and set it down on the chequered floor panel on the upper floor.

Look for the beam receptor near the lifts on your left and use your portals so the beam from the Displacement Cube is directed at the receptor (use the small vertical corner to guide the beam properly).

This will cause the first of the two lifts to lower to the ground, so stand on it and then face the Displacement Cube up ahead. Note the colour of the portal you used near it and fire this portal anywhere else, this’ll break the laser beam and raise the platform you’re currently on.

The final task involves you moving the Displacement Cube from the laser beams line of fire and using the transportation beam to carry the Experimental Cube up to the switch on the ceiling.

Once it’s pressing the switch, step onto the second platform and then use a portal to break the transportation beam completely. This’ll cause the platform to raise upwards and let you escape via the exit.

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Guide Information
  • Publisher
    Valve Corporation
  • Platforms,
    PC, PS3, XB 360
  • Genre
  • Guide Release
    30 June 2011
  • Last Updated
    7 December 2020
  • Guide Author

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Welcome back to Aperture Science, a world where your Companion Cube isn’t you’re only company. Take control of Chell once again in Valve’s sequel which takes you on an humorous and puzzling adventure and in our detail-packed guide we’ll show you:

  • How to solve every test chamber first time.
  • Conquer every co-op chamber with a friend.
  • Loads of High Definition screenshots and videos showing you the solutions to every single chamber.
  • High Definition strategy videos for every achievement in the game.
  • Uncover all of the hidden secrets and Easter eggs.

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