This is the fourth level in Co-op mode of Portal 2 and the third chamber in the course. It introduces players to the use of the [[Thermal Discouragement Beam]]s and [[Discouragement Redirection Cube]]s. [[Turret]]s are present as the primary hazard.
== Summary ==
{{Spoiler|block=on|The goal in the first area is to get the beam through each of the nodes. In the second area the beam must be aimed at the panels and by using all four portals direct the beam to the receptacle.}}
== Contents ==
=== Mechanics ===
* [[Heavy Duty Super-Colliding Super Button]]
* [[Thermal Discouragement Beam]]
* [[Switch]]
=== Hazards ===
* [[Turret]]s
== Walkthrough ==
{{Coop walkthrough table
| atlas-1 = {{Spoiler|Put your portals on each side of the wall on the left of the node.}}
| pbody-1 = {{Spoiler|Put your portals on each side of the wall on the right of the node.}}
| atlas-2 = {{Spoiler|Pick up the cube and aim it through every node.}}
| both-3 = {{Spoiler|Go in the checkpoint room and then proceed to the next area.}}
| atlas-4 = {{Spoiler|Push the [[Switch]] and then go stand on the [[Heavy Duty Super-Colliding Super Button]].}}
| pbody-5 = {{Spoiler|Pick up the Cube and redirect the beam from the ceiling to the turrets in order to destroy them. Then aim the beam straight forward to the white panels.}}
| atlas-6 = {{Spoiler|Shoot your portals to the panels with the beam and the other portal on the wall nearest to the node.}}
| pbody-6 = {{Spoiler|Place your portals on the highest panels and then to the panels near the place where you picked up the Cube.}}
| both-7 = {{Spoiler|Go to the door and then proceed to the disassembly area.}}
}}
== Video walkthrough ==
{{walkthrough | nodemo = true}}
== Gallery ==
{{Gallery
|width=192
|height=108
|lines=2
|File:Portal 2 Co-op Course 1 Chamber 3 area 2.png|alt2=The second area of the chamber.|The second area of the chamber.
The goal in the first area is to get the beam through each of the nodes. In the second area the beam must be aimed at the panels and by using all four portals direct the beam to the receptacle.
Pick up the Cube and redirect the beam from the ceiling to the turrets in order to destroy them. Then aim the beam straight forward to the white panels.
6
Shoot your portals to the panels with the beam and the other portal on the wall nearest to the node.
Place your portals on the highest panels and then to the panels near the place where you picked up the Cube.
7
Go to the door and then proceed to the disassembly area.
