Chapter 8 - Test Chamber 1
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 | “I can't get over how small you are!” This article is a stub. As such, it is not complete. You can help Portal wiki by expanding it. |
Chapter 8 - Test Chamber 1
sp_a4_tb_intro.bsp 
This is the forty-ninth 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. This test chamber is one originally created by GlaDOS. Wheatley defends the idea he made it by adding the word 'TEST' to the wall with white panels, saying "Not entirely, not entirely. Look at the word 'test', on the wall there. That's brand new."
Hazards
- None
Walkthrough
- 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
Related achievements
 |
Smash TV Break 11 test chamber monitors |
Music
Main article: Portal 2 soundtrack
TEST by Aperture Science Psychoacoustics Laboratory [6:14] | 
Download | 
Play
Excursion Funnel by Aperture Science Psychoacoustics Laboratory [4:32] | Download | Play