Portal 2 Strategy Guide

Guide Information

  • Publisher
    Valve Corporation
  • Platforms
    Microsoft Windows, PlayStation 3, Xbox 360
  • Genre
  • Guide Release
    30 June 2011
  • Guide Update
    22 March 2018
  • Guide Author

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Chapter 6 - The Fall

Chapter 6 - The Fall

Chamber 6

Notice the Wooden Test Cube in the suspended glass container? Fire an exit portal directly above it (on the ceiling) and then place your entrance portal right underneath the blue Repulsion Gel pool. This'll coat the Cube in gel, making it bounce around and break out.


If you can catch the bouncing Cube before it touches the ground, you’ll earn yourself the 'Schrodinger’s Catch' Achievement/Trophy!

Now catch the Cube and carry it under the water to clean it up. Drop it onto the red floor switch to lower the lift that’s up on the ledge behind you.

Leave the portal under the blue gel dispenser and set an exit portal on the floor just below the lift, don't forget to shift the portal's location so the blue gel coats the floor.

Now bounce up to the lift, turn around and place the exit portal on the ceiling directly above the Wooden Test Cube. The gel will coat the Cube again, causing it to bounce off the switch, raising the lift and allowing you to exit the chamber.