Rexaura Test Chamber 00

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Test Chamber 00
rex_00_intro.bsp Intro

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Test Chamber Infobox previous disabled.png
Test Chamber Infobox next.png
Test Chamber Infobox Portal Guy.png
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Rexaura Test Chamber 00.png

This Test Chamber is the first level of the game, and introduces the player to GLaDOS accompanied by the Encouragement Core, as well as Portals, the single-Portal variant of the Aperture Science Handheld Portal Device, the High Energy Pellets, the Chamberlock and the Emancipation Grill.



  • Wait until the intro sequence is over or skip it with double-clicking the left mouse button.
  • After the Encouragement Core and GLaDOS have finished talking, go through the newly opened blue portal.
  • Take the Portal Device and fire a portal behind a grating wall to your right.
  • Shoot a portal at the spot where the High Energy Pellet is bouncing.
  • Use the elevator to get into the Chamberlock.

Video walkthrough


01. One (Intro) - 1:52 by Mevious