Portal 2 Chapter 8 Test Chamber 15
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This is the fifty-fifth level of the game, and takes place within an incomplete Aperture Science Test Chamber. This level features both Excursion Funnel and Repulsion Gel, and demonstrates the way in which the Funnel can be used to transport Gels to wherever they are needed.
Chapter 8 - Test Chamber 15
sp_a4_speed_tb_catch.bsp Propulsion Catch
Hazards
- Falling to your death
Walkthrough
- Push the Switch.
- Go stand on the button on the left and put a portal at the end of the Excursion Funnel.
- Place the other portal on the opposite wall of the cube dispenser.
- Shoot the same portal on the wall below the Frankenturret.
- Wait for the Frankenturret to be above the floor and then leave the button.
- Shoot portals in the small room and the wall next to it. Take the Frankenturret through the portal and place it on the button.
- Go back and stand on the button. Shoot a portal at the end of the Funnel.
- Place the other portal to the wall below the flowing Propulsion Gel and wait until the gel is above the ramp.
- Leave the button and make sure that the runway is complete. If it isn't: repeat until it is.
- Fire a portal in the small room and the wall next to it. Go through the portal and get the Frankenturret.
- Go through the portal and place the Frankenturret on the button.
- Place a portal at the end of the Funnel and the other one to the opposite wall of the exit (center of the wall).
- Leave the Funnel and 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