Portal 2 Chapter 2 Test Chamber 2

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Portal 2 Chapter 2 Test Chamber 2
sp_a2_laser_stairs.bsp Laser Stairs

Chamber number 0.pngChamber number 2.png

Test Chamber Infobox previous.png
Test Chamber Infobox next.png
Test Chamber Infobox Portal Guy.png
Chamber progress 0.pngChamber progress 2.pngChamber progress slash.pngChamber progress 2.pngChamber progress 2.png

Portal 2 Chapter 2 Test Chamber 02.png
Chamber icon cube dispenser on.pngChamber icon cube button on.pngChamber icon cube hazard on.pngChamber icon player button.pngChamber icon water hazard.png
Chamber icon laser sensor on.pngChamber icon laser redirection on.pngChamber icon turret hazard.pngChamber icon laser hazard.pngChamber icon dirty water.png

This is the eleventh level of the game, and takes place within a dilapidated Test Chamber. This chamber introduces the Discouragement Redirection Cube, and the way in which it can be used in combination with the Thermal Discouragement Beam in order to activate Panels. This level also introduces the ability of the Redirect Cube to act as a Weighted Storage Cube and activate Heavy Duty Super-Colliding Super Buttons.






  • Aperture Science Enrichment Center
  • Test Chamber 02 (GLaDOS)


  • Upon entering the room head to the left to a small cut off alcove which contains a Discouragement Redirection Cube. Wheatley makes a quick appearance here. Shoot a portal through the grating on the floor inside and place one somewhere on your side.
  • Enter through and pick up the Discouragement Redirection Cube. Return back through your portal to the main room and to the Thermal Discouragement Beam.
  • Place the Discouragement Redirection Cube such that it intercepts the Thermal Discouragement Beam and redirects it into the receptacle.
  • Proceed to the top of the newly created staircase and place a portal on the floor. Place the second portal underneath the Discouragement Redirection Cube and catch it as it falls through the portal. Place it on the Heavy Duty Super-Colliding Super Button and exit into the Chamberlock.

Video walkthrough

Download Download demo file


  • When Wheatley appears in the wall it is possible to grab him if the player is quick enough.


  • Hoopy the Hoop can be seen around a panel's hydraulics in this chamber.