Co-op Course 4 Chamber 4

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Co-op Course 4 Chamber 4

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This is the twenty-seventh level in Co-op mode of Portal 2 and the fourth level in the course. The chamber requires some timing skills and advanced use of the Excursion Funnel. The primary hazard in this chamber is falling to your death.


This chamber requires some timing skills, since the players need to switch their portal placements in a short period of time and carry both of the players to the other side of the chamber in one funnel. The only Funnel in the chamber needs to be used more than once and it needs to be redirected multiple times during the flow from one side of the chamber to the other.





# Atlas P-body
1Fire a portal on the wall where the Excursion Funnel ends and then place the other portal on the wall behind the Aerial Faith Plate. The Excursion Funnel should now end on the opposite side of the room.
2Use the Aerial Faith Plate.
3Put a portal at the end of the Excursion Funnel and the other portal on the wall facing the small room with the Switch and Thermal Discouragement Beam. Then go through your portal and exit from the Funnel to the room.
4Go through the portal your partner placed to reach the small room. Stand on the platforms on the entrance and fire the portal from above the Faith Plate to the same wall, so that the funnel now flows under the Discouragement Redirection Cube dispenser.
5Use the switch and move the portal from the wall facing the gap to the new spot where the Funnel stops. Funnel should now deliver the cube to the room. Take the Redirection Cube and use it to align the Discouragement Beam to the portalable panel in the small room. Fire one of your portals on the same spot and go stand on the entrance.
6While standing on the entrance, put a portal on the wall on the right of the entrance so that the Funnel flows to the main room with you and your partner in it. Wait until you and your partner reach the other side and then place the same portal to the wall with the entrance door. Wait until you and your partner touch the wall and then fire a portal on the panels below the small room. You and your partner should now be able to enter in the last part of the chamber.
7Place your other portal on the opposite of the Beam receptacle, so that the beam can activate it.
8Walk up the stairs and enter the disassembly area.

Video walkthrough

-To do-

Related achievements

Obstacle Building
Obstacle Building
Complete all test chambers in the Excursion Funnels co-op course
Still Alive
Still Alive
Complete Course 4 with neither you nor your co-op partner dying