This is the fifty-second level of the game, and takes place within an incomplete [[Aperture Science]] Test Chamber. This level features the [[Excursion Funnel]], and introduces the way in which [[Buttons]] can be used to change the direction of Funnels. [[Turrets]] are present as an additional hazard in this level.
This is the fiftieth level of the game, and takes place within an incomplete [[Aperture Science]] Test Chamber. This level features the [[Excursion Funnel]], and introduces the way in which [[Heavy Duty Super-Colliding Super Button|Buttons]] can be used to change the direction of Funnels. [[Turrets]] are present as an additional hazard in this level.
== Threats faced ==
== Contents ==
=== Mechanics ===
* [[Frankenturret]]
* [[Vital Apparatus Vent]]
* [[Heavy Duty Super-Colliding Super Button]]
* [[Excursion Funnel]]
=== Hazards ===
* Deadly Pits
* [[Turrets]]
* [[Turrets]]
* Falling to your death
=== Characters ===
* [[Chell]]
* [[GLaDOS]]
* [[Wheatley]]
=== Locations ===
* ''Test Chamber 04 (Wheatley)''
=== Objective ===
* Go through Wheatley's Test Track.
== Walkthrough ==
== Walkthrough ==
{{Spoiler|block=yes|
*Fire a portal at the end of the [[Excursion Funnel]] and the other portal at the end of the [[Turret]]'s targeting laser.
*Wait for a few seconds for the Turret to travel to a bottomless area and then shoot the portal at the panels below the Funnel Receptacle.
*Go stand on the [[Heavy Duty Super-Colliding Super Button|button]] and wait for the [[Frankenturret]] to go through the portal.
*Shoot the same portal on the left of the wall you used to get rid of the Turret. Step off from the button.
*Frankenturret should come within your reach. Pick it up and place it on the button.
*Jump in the Funnel, wait until you are on the opposite side and then exit the Funnel.
*Shoot a portal on the wall next to you to get the Frankenturret off the button.
*Put a portal in front of the exit and go in the Funnel.
*Go in the [[Chamberlock]].
}}
== Video walkthrough ==
{{walkthrough}}
{{walkthrough}}
== Related achievements ==
{{Show achievement|Portal 2|Smash TV|width=50%}}
== Music ==
{{main|Portal 2 soundtrack}}
{{Track|TEST}}<br/>{{Track|Excursion Funnel}}
{{TestChambersNav}}
{{TestChambersNav}}
[[Category:Portal 2 chambers]]
Latest revision as of 20:09, 23 March 2023
“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.
Portal 2 Chapter 8 Test Chamber 4
sp_a4_tb_polarity.bspPolarity
This is the fiftieth level of the game, and takes place within an incomplete Aperture Science Test Chamber. This level features the Excursion Funnel, and introduces the way in which Buttons can be used to change the direction of Funnels. Turrets are present as an additional hazard in this level.
TEST by Aperture Science Psychoacoustics Laboratory [6:14] | Download| Play Excursion Funnel by Aperture Science Psychoacoustics Laboratory [4:32] | Download| Play
Download | 
Play