Portal 2/The Cold Boot

You continue your testing with GLaDOS. Just like old times.

Chamber 01
You will find a laser emitter and laser receiver next to each other in the middle of the chamber. The laser needs to go from the emitter to the receiver so that the lift leading up to the exit can operate.


 * 1) Stand on the lift.
 * 2) Shoot a blue portal where the laser from the emitter touches the floor.
 * 3) Shoot an orange portal on the ceiling, right above the receiver. If placed right, the laser should now pass through the portals, straight from the emitter to the receiver.

Walk through the exit and then onto the elevator to the next chamber.

Chamber 02
A laser cuts through the middle of the room. You will find the redirection cube (It's a cube with glass hemispheres on every face.) on the other side of the laser, but debris blocks your path.


 * 1) Jump over the laser.
 * 2) Shoot a blue portal under the redirection cube and an orange portal anywhere accessible. Grab the redirection cube.
 * 3) Redirect the laser into the receiver. Think of it like holding a mirror.
 * 4) Climb up the stairs that have now appeared, and onto the platform. You will find that the exit is operated by button.
 * 5) Shoot a blue portal under the redirection cube again, and an orange portal anywhere accessible on this platform.
 * 6) Grab the redirection cube and place it on the button.

Walk through the exit and then onto the elevator to the next chamber.

Chamber 03
Take note of where the receiver, the laser, the cube and the exit are.
 * 1) Shoot a blue portal at the wall of the raised ledge where the redirection cube is, and an orange portal anywhere accessible. Walk through.
 * 2) Shoot a blue portal on the ceiling above the platform in the middle, and an orange portal anywhere accessible. Grab the cube and walk through. (Watch out for the lasers!)
 * 3) Redirect one of the lasers into the receiver on the wall to the right of the chamber.
 * 4) Shoot a blue portal at the wall of the raised ledge again, and an orange portal anywhere accessible. Walk through.
 * 5) Shoot a blue portal where the higher laser meets the wall and an orange portal at the floor of the raised section, right below the receiver on the ceiling. Both lasers should now go into a receiver.

Walk through the exit and then onto the elevator to the next chamber.

Chamber 04
There is a huge pool of toxic goo in the middle of the chamber.
 * 1) Shoot a blue portal at the wall next to the button on the other side of the room, and an orange portal on the wall next to you, right across from the receiver. Walk through.
 * 2) Press the button to receive a cube.
 * 3) Shoot a blue portal at the wall on the far side, right where the laser meets it. Because we placed an orange portal across the receiver earlier, this will now activate a moving platform.
 * 4) Grab the cube and walk onto the platform. (Watch out for the laser! Jump at the appropriate moment or block it with the cube.)
 * 5) Place the cube on the button.

Walk through the exit and then onto the elevator to the next chamber.

Chamber 05
Take note of the Aperture Science Aerial Faith Plate right before you. These are designed to fling you into the air once you step on them.


 * 1) Step on the Aerial Faith Plate (AFP) and fling yourself over to the button.
 * 2) Press the button. You will find that a cube falls from the ceiling onto an AFP. It will keep flying up and down in the middle of the room in perpetuity.
 * 3) Step on the AFP next to you to fling yourself to the other side again. This time, however, grab the cube while in mid-air.
 * 4) Step on the AFP again, with the cube, to fling yourself over to the exit.
 * 5) Press the cube on the button.

Walk through the exit and then onto the elevator to the next chamber.

Chamber 06
Note the string of AFPs on the pool of toxic goo.


 * 1) Before anything else, walk over to the edge of the floor until you can see both of the angled platforms to the right side of the chamber (next to where you came in from).
 * 2) Shoot a blue portal on the right-hand angled platform and an orange one on the left.
 * 3) Step onto the AFP next to you. Enjoy flying through the air. Afterwards, you will find yourself on a platform next to the exit.
 * 4) Shoot an orange portal on the ceiling above the big red button. The button should be to the left of the chamber, along the wall of the exit.
 * 5) Press the button. Some garbage will be dropped, flung through the air and portalled onto the big red button.
 * 6) Press the button again. The cube should drop out, get flung by the AFPs, portal through and fall onto the button. (This should earn you the Drop Box achievement.) If not, don't worry. Press the button again to get another cube and retry; make sure to adjust the orange portal so the cube can fall through properly.
 * 7) Shoot a blue portal anywhere accessible and walk through. You will fall onto the big red button yourself, and be surrounded by junk.
 * 8) To get the Pturretdactyl Achievement, grab the malfunctioning turret and throw it onto the nearest AFP. You might fall into the toxic goo while attempting this, but that should be okay as you will respawn at the big red button again.
 * 9) To get the Final Transmission Achievement:
 * Grab the junk radio and jump onto the nearest AFP. You will be flung back to where the exit was.
 * Shoot a blue portal on the wall above where you came in from and an orange portal anywhere accessible. Walk through with the radio.
 * Look at the wall to the left of where the angled platforms are. You will notice a space in the top right corner.
 * Shoot a blue portal on the wall of the space and an orange portal on the right hand angled platform.
 * Grab the radio and step onto the nearest AFP. You will get flung into a secret room with the radio, thereby earning you the achievement.
 * Drop down into the entry platform and fling yourself onto the exit platform as before.

Walk through the exit and then onto the elevator to the next chamber.

Chamber 07
Take a good look at the chamber. Note the position of the cube, the laser, the platform and the exit. Note that the laser is already going from the emitter to the receiver.


 * 1) Jump over the laser and grab the cube. GLaDOS will "accidentally" fizzle it out. (If you've played Portal, you'll know that this cube is a companion cube and GLaDOS is doing this on purpose to remind you of what happened to it in the first game.)
 * 2) Grab the next companion cube as well and watch GLaDOS fizzle it out too.
 * 3) The third companion cube will not fizzle out. Use it to block the path of the laser, so that the platform will retract and you can climb onto it.
 * 4) After getting onto the platform, shoot a blue portal under the cube and an orange portal anywhere accessible, so that the laser can reach the emitter again and the platform can extend upwards.
 * 5) Shoot a blue portal the angled platform now visible next to you. You will find the companion cube on the other side of the portal. Grab it through the portal.
 * 6) Shoot a blue portal at the angled platform to the right, and an orange portal at the floor of the pit below.
 * 7) Drop the cube into the portal. You will see that the cube flies out of the blue portal onto the raised ledge next to the one with the exit. Jump through yourself to reach the ledge. (Or you can grab the cube and jump through while holding it.)
 * 8) Place the cube on the button. You will see a platform extend from the ledge with the exit.
 * 9) Shoot a blue portal at the angled platform to the left, and jump into the orange portal once again to fling yourself over to the exit.
 * 10) To get the Preservation of Mass Achievement:
 * Shoot a blue portal on a wall on the other side of the broken Emancipation Grill.
 * Drop down to the companion cube and shoot an orange portal anywhere accessible.
 * Grab the companion cube and walk through the portal. This will earn you the achievement.

Walk through the exit and then onto the elevator to the next chamber.

Chamber 08
Note that the laser is on the other side of the Emancipation Grill. You will find that you cannot shoot portals through Emancipation Grills, and cannot carry objects across it, but can walk through yourselves. Every time you walk through one, any portal you shot previously collapses.


 * 1) Walk through the Grill and press the button. You will find that a redirection cube falls on the other side of the Grill.
 * 2) Shoot a blue portal anywhere accessible on your side of the grill.
 * 3) Through the small circular hole in the glass, shoot an orange portal on the other side and walk through.
 * 4) Grab the redirection cube and bring it back with you to this side of the Grill.
 * 5) Redirect the laser into the receiver on the other side of the Grill and walk over to the other side. The exit will have opened.

Walk through the exit and then onto the elevator to the next chamber.