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Player 1: Run across to the horizontal panels in the upper right-hand corner of the room and set your entrance portal at the bottom and your exit portal at the top (this is important). Press the nearby switch and then quickly fire off the EXIT portal on the slanted wall to the left. Now watch as your colleague gets flung over the acid water, to the other side.

Player 2: You need to replace the portals used by player 1 in the same manner (entrance portal at the bottom and exit portal at the top) and once they’ve jumped into the infinite loop, hit the switch on your side and then immediately set the exit portal on the slanted wall in the corner. Once you’re both on the same side, just walk into the exit elevators.

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

Share this free guide:

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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