Image taken from: gamerguides.com
In this walkthrough, I'll describe the optimal way to complete the levels. It's not 100% ready, but I've completed the game and know how to do each (ask in PM).
Let's begin...
Explanations:
As you play, divide the roles between yourself.
O - Orange
C - Blue.
Calibration Test
You've just started the game, and you're being introduced to the controls, or rather, their new features.
First, wave to your friend, and they should wave back.
Now, the blue one should choose their favorite animal (the controls are all written down), and the orange one should choose their favorite element from the periodic table.
You're released to the ground.
You won't be able to interact with your partner, but you have GladOS, who will open a portal for them. Simply point to the walls where a portal needs to be opened. Take the portal gun.
In the next room, get comfortable with the portal gun to climb to the higher platform.
In the next room , C should press the button for O to proceed. Then, do the opposite.
Now O should open two portals so that his partner can reach the exit.
In the next room, you need to correctly place a cube on a button. If the passage next to you opens, it means your partner is thinking about you, since they opened the entrance to the room. Repay them in kind.
In the next room , C summons a cube, and O takes it to give to C , after which C goes to the exit (there is a passage on the side, and going across the moat is pointless) and takes the cube from C to place it on the button.
In the next room , O stands on the button, and C shoots a portal through the deactivated field and goes further to find another wall from which O will emerge .
After all the machinations, O presses the button and reunites with the blue one.
Course 1 Team play
Chamber 01
O stands on the button, which will open the nearest available door. C enters the room and shoots one portal in the wall. O at this time stands on another button. C shoots another portal in the wall near the exit and goes back to press the button, which will open the entrance for O to the room where C is standing . Now both robots can safely go to the exit.
Chamber 02
C calmly crosses the moat and leaves the first portal until the end of the trial at the wall, which O can approach .
O presses the button to I was able to reach the exit. At exit C, I place a second portal, and the robots will now be able to reunite and head to the second part of the chamber.
Here, you need to know how to use the timer. In the room, simply press four buttons within five seconds.
Place four portals opposite the buttons. The portals should be symmetrical (variances are acceptable). It's best to start with the top buttons. On the count of three, start pressing the buttons, after which you will get a rounded safety cube.
Image taken from: gamerguides.com
Chamber 03
Aim the laser at the wall next to you (a portal should be placed on the wall).
Now place 4 portals so that the laser passes through 2 laser receivers.
In the second room , O stands on the button and stands there until C kills the turrets with the laser. Afterwards , C aims the laser at the white wall in front of him. Place 4 portals so that the laser passes through 2 laser receivers (the starting and ending portals should be different colors). Complete the test.
Chamber 04
First, you need a cube.
O will press the buttons, and C will follow the cube forward. To make the task easier, C should leave one portal outside.
Everything is very simple here. O experiments with the buttons, while C stands in the safe zone.
O presses the correct button, and C goes to the next section of the path. When C reaches the cube, he should open the second portal to get out of the maze.
Now place the cube under the laser, which you in turn aim at the laser receiver.
The path to the exit is open.
Image taken from: gamerguides.com
Chamber 05
If you have the cube, don't press the button; it's a waste of time. Here, C will control the laser, and O will complete the challenges. First, lift the press. On the first platform, O should place the portal high above the second platform and low below the first. As soon as C aims the laser at the second cell, O should be ready to jump to the second platform through the portal below.
As soon as the second platform reaches its maximum height, C should aim the laser at the third cell to lift the press. After the obstacle course, C aims the laser at the first cell and goes to the first moving platform. Meanwhile, O places the portal on the wall next to the first platform and on the wall near the exit.
Chamber 06
The final challenge in the "Confidence Development" exercise complex . This one is very simple. O places the portal on the wall next to it and on the wall in the distance (finding the wall in the distance is the hardest part of the challenge).
Now you need to find the disk. You need to use a timer here, as the levers to open the door must be pressed simultaneously. As soon as the door opens, you need to open the portal behind it. Place the second portal within easy reach. Once you find the disc, insert it into the drive. Admire the diagrams.
Portal 2: Co-op Walkthrough:
Course 1: Team Play
Source: playground.ru