Test Chamber 03

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Test Chamber 03
level_01.bsp Get the Blue

Chamber number 0.pngChamber number 3.png

Test Chamber Infobox previous.png
Test Chamber Infobox next.png
Test Chamber Infobox Portal Guy.png
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Portal Prelude Test Chamber 03.png
Chamber icon cube dispenser.pngChamber icon cube hazard.pngChamber icon pellet hazard.pngChamber icon pellet catcher.pngChamber icon water hazard.png
Chamber icon fling enter on.pngChamber icon fling exit on.pngChamber icon turret hazard.pngChamber icon dirty water.pngChamber icon empty on.png
Chamber icon empty.pngChamber icon empty.pngChamber icon empty on.pngChamber icon empty on.pngChamber icon cake.png

This Test Chamber is the fourth level of the game, and introduces the player to the upgraded Handheld Portal Device, as well as advanced Flinging techniques.


  • None


  • Go to the room on your left, after the Material Emancipation Grill.
  • Jump over the pit and grab the upgraded Handheld Portal Device.
  • Shoot a portal on the upper floor in the pit, and the other on the lower floor.
  • Jump through the lower portal to reach the room entrance's level. Go back to the main room.
  • Place a portal on the extended panel near the ceiling, and the other on a wall near you. Go through this last.
  • Before touching the ground, put a portal under you. You should reach the first floor.
  • Turn around, move forward and jump before falling. Continue to move forward while you are in the air.
  • Before touching the ground, put a portal under you. If you do it correctly, you should reach the last floor.
  • Go to the Chamberlock.

Video walkthough


26. Slow Atmosphere 4 - 0:42 by ERH

See also