Chapter 8 - Test Chamber 2
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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 2
sp_a4_tb_trust_drop.bsp 
This is the fiftieth level of the game, and takes place within an incomplete Aperture Science Test Chamber. This level features the Excursion Funnel as its primary mechanic. Wheatley states that he made this test chamber himself, out of smaller chambers.
Hazards
- Falling to your death
Walkthrough
- Jump in the Excursion Funnel below and fire a portal on the wall on the left.
- Place a portal at the end of the Funnel, so you may enter through.
- Shoot the portal you placed first on the wall on the left directly facing you. You should stay in the funnel and go along it.
- Put the same portal on the floor below and go on the area on next to it.
- Place the same portal below the cube dispenser and push the Switch.
- Fire the portal on the floor below the cube and take the cube from the funnel.
- Look for the button on the ceiling and put the portal on the floor below it. Put the cube in the Funnel and wait.
- Go in the Chamberlock.
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