Portal 2 Walkthrough: Test Chambers 03 - 04

After getting out of the elevator, climb the stairs. The announcer will warn you that the next test is very dangerous, and that smooth jazz will be deployed to help you remain tranquil in the face of almost certain death. Go through the door and into the room with the red pressure pad.

Observe how standing on the red button opens the door. Also observe the chute dropping a crate in the pit below. Fall down, shoot open a portal, get the crate and go through the portal. Place the crate on the red button. Alternatively (and a cooler solution), stay on the top floor shoot a portal beneath the crate, which will cause the crate to fall through and emerge where you are. Now go through the door and through the barrier.



Enter the room with the 2 red platforms. Get the crate from the pit across the door by shooting a portal beneath it then jumping after it. Place the crate on one of the red platforms. Now go again through the portal to the top platform, and shoot a portal across the room to open one in the other platform, and go through it to get the second crate.



The door will now open, and the announcer will tell you that because the message is pre-recorded, any observations related to your performance are speculations and to disregard any undeserved compliments.  Go through the door which will close behind you. Observe the portal that opened in the ceiling.



Open a portal near you and go through it. Land on the glass and break it, then climb the glass.

Dont climb the stairs, instead go around the debris to the corridor where the door is. Go through the door and the barrier and enter the elevator. You have now reached test chamber 05.