Chapter 8 - Test Chamber 5
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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 5
sp_a4_tb_catch.bsp 
This is the fifty-third level of the game, and takes place within an incomplete Aperture Science Test Chamber. This level features the Aerial Faith Plate and the Excursion Funnel as its primary mechanics. Wheatley plays classical music (J.S. Bach's Little Prelude in C Minor BWV 934) during this level to convince GLaDOS and Chell that he is not a moron. He also pretends to have just finished reading books, including one by Machiavelli.
Hazards
- Falling to your death
Walkthrough
- Shoot a portal at the end of the Excursion Funnel. Place the other portal on the platform in front of the Aerial Faith Plate.
- Use the Aerial Faith Plate to go in the Funnel. Wait until you are in the ceiling.
- Shoot the portal from the wall to the angled wall on the opposite side of the exit.
- Place the same portal on the wall at the end of the Funnel again, and then press the Switch.
- Put the portal on the angled wall again to get the Frankenturret on the area where you are and then put the Frankenturret on the button.
- Go in the Chamberlock.
Video walkthrough
Related achievements
 |
Smash TV Break 11 test chamber monitors |
Music
Main article: Portal 2 soundtrack
Machiavellian Bach by Aperture Science Psychoacoustics Laboratory [4:01] | 
Download | 
Play
Excursion Funnel by Aperture Science Psychoacoustics Laboratory [4:32] | Download | Play