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Portal 2 Chapter 1 Test Chamber 6
This is the sixth level in the game, and is set within a dilapidated Test Chamber. The primary focus of the level is to build upon the concepts of speed and momentum that were introduced in the previous Test Chamber. The Test Chamber is completed by combining speed and momentum in order to avoid obstacles, and acquire a Weighted Storage Cube which is used to activate a Button and thereby allow access to the Chamberlock.
To the far left, a storage cube will drop from a Vital Apparatus Vent; on the left closest to you is an angled platform. Directly in front is a pit with an orange portal at the bottom.
Place a portal on the angled platform to the left and jump into the orange portal.
Facing the door you came through, look to the left to see a section of white wall. Place a portal as high and to the left as possible on this wall and take the cube through the orange portal once more.
Place the cube on the super button to open the exit door; this will also raise a set of panels in order to create a landing pad.
Look back at the wall with the blue portal, and place a portal as far right as possible on the same wall section.
Jump into the orange portal; proceed into the Chamberlock.