Portal 2 Chapter 8 Test Chamber 1

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Portal 2 Chapter 8 Test Chamber 1
sp_a4_tb_intro.bsp Funnel Intro

Chamber number 0.pngChamber number 1.png

Test Chamber Infobox previous.png
Test Chamber Infobox next.png
Test Chamber Infobox Portal Guy.png
Chamber progress 0.pngChamber progress 1.pngChamber progress slash.pngChamber progress 1.pngChamber progress 9.png

Portal 2 Chapter 8 Test Chamber 01.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 excursion funnel on.pngChamber icon turret hazard.pngChamber icon dirty water.pngChamber icon blades hazard.pngChamber icon crusher hazard.png

This is the forty-seventh level of the game, and takes place within an Aperture Science Test Chamber. This level introduces the Excursion Funnel, and the way in which it can be used to move the player and objects as well as circumvent the laws of gravity.




  • None



  • Test Chamber 01 (Wheatley)


  • Go through Wheatley's Test Track.


  • Jump in the Excursion Funnel and fire a portal on the ceiling.
  • Wait until you've reached the second area and when possible, place the other portal on the wall next to the windows.
  • You should enter the portal and head for the Frankenturret. When it is in your reach, pick it up.
  • Go stand between the Funnel and the wall closest to it. Shoot a portal from the wall to the floor in the area below. Look for small panels with grey and white colours.
  • Place the Frankenturret in the Funnel and wait for it to reach the button.
  • Go in the Chamberlock through the door in the corner.

Video walkthrough

Download Download demo file

Related achievements

Smash TV
Smash TV
Break 11 test chamber monitors


Main article: Portal 2 soundtrack

TEST by Aperture Science Psychoacoustics Laboratory [6:14] | Download Download | Play icon.png Play
Excursion Funnel by Aperture Science Psychoacoustics Laboratory [4:32] | Download Download | Play icon.png Play