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| Chapter 3: The Return | [W3]
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|Test Chamber 09| [3.01]
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After GLaDOS lowers the ceiling above the plate, put a portal on the ceiling
and put another portal on the ceiling above the higher area to get up there.
Once up here look to the left and you'll see three slanted wall pieces. The
far piece points to a button that dispenses a cube, so place an exit portal
on that and go back down to the faith plate. Use the plate to bounce up and
over to the button. Hit it, then place a portal on the next slanted wall
piece. Do the same thing to get over to the redirection cube and use it to
point the laser at the piece of white wall sticking up in the middle. Now,
place an exit portal on the last slanted wall piece so you can get up to the
exit door.
Once you're up here, place a portal on each side of that middle wall so the
laser travels through it and enters the receptacle on the other side,
opening the exit door.
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|Test Chamber 10| [3.02]
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Put a portal on the same wall as the entry door, up high. Your goal is the
platform with the cube on it across the way. Just before the cube platform
there's a pit. Place your second portal down here and jump in to sail over to
the cube. Now use the plate in the middle to bounce yourself up to the laser.
Use the cube to block the laser, which lowers the glass barricade here. Jump
back down and use the plate again. This time you'll hit some more faith
plates on the back wall and bounce up to another glass barrier. There is a
laser receptacle up here and a small button. Use the button to dispense a
redirection cube.
The cube will follow the same path you did and wind up on the platform with
you. Now, place a portal on the wall opposite the laser receptacle and bring
the redirection cube down to the second level. Remove the regular cube from
the laser's path and replace it with the redirection cube. Point the laser at
the white piece of wall and shoot a portal onto it to connect the laser with
the receptacle. Now take the regular cube with you back down to the first
plate and use it. You'll bounce all the way to the exit door. Place the cube
on the button to open it.
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|Test Chamber 11| [3.03]
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You'll be introduced to hard light bridges in this chamber. You can make the
bridges go through portals, providing temporary platforms. Place your entry
portal on the wall where the light bridge ends. Place the exit on the wall
next to the exit door. The light bridge will come through the portal and you
can walk across to the small button. Hitting it causes cubes to continuously
drop from the dispenser to the left of the button. It's behind a glass
barrier. To get in here, look for the entrance to the right of the glass
barrier. There's a break in the lower white wall and you can move inside it.
You will need to put your exit portal on the wall opposite this "hallway" to
make a light bridge go into it.
When you have to turn a corner, put your exit portal on the next wall and
continue on. Now put your exit portal on the other white wall so that you can
walk directly under the dispenser and grab the cube. Go through the portal to
get back up to the beginning platform. Now, if you're looking at the exit
door, place the exit portal on the white wall to your right so you can use it
to get to the button, which is behind some glass on the left. Put the cube on
the button and use portals and bridges to get back over to the exit door.
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|Test Chamber 12| [3.04]
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When you finally get inside the chamber, look up and left. You should see a
light bridge. Place a portal above the beginning of the bridge and get onto
it. Place your entry portal at the end of the bridge and the exit portal on
the wall behind the small button. That way when you press the button, the
cube will drop down and hit the bridge. Grab the cube and go back through the
portal so you're on the original part of the bridge. Place another portal on
the vertical part of the small button platform so you can walk over to the
exit door and place the cube on the big button.
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|Test Chamber 13| [3.05]
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You'll be right behind a turret as you enter the test chamber. To disable a
turret you have to knock it down, so just grab it and throw it. It will spray
randomly for a couple of seconds and then shut down. Place a portal behind the
next turret and grab it through another portal to take it out. All you have to
do to eliminate the next turret is place one portal on the floor below it.
It'll fall out of your other portal.
When you get to the area with three cubes, you'll have to worry about two
turrets at both ends of the next hallway. Place a portal above a turret and
place another portal below a cube. The cube will knock the turret down. Repeat
for the second turret. The next room has three turrets covering the whole
place. You'll need the three cubes, and the idea is the same. Place a portal
on the wall next to you, then place one over each turret and drop something
on them to knock them over. Look through the portal before throwing in a cube
to make sure you've got it lined up correctly. The turret closest to you is
facing away, so if you can take out the other two, you can just walk up and
throw this one down. Place a cube on the button in here to leave.
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|Test Chamber 14| [3.06]
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Move along the catwalk until you get to the end. You'll be lifted up in the
middle of a test chamber. You will need to get the laser to go through all
three nodes on the floor at once to open the exit door. Grab the redirection
cube and use it to force the laser through two of the nodes. Place a portal
on the wall where the laser ends, and keep placing portals on the wall by
the last node until the laser lines up on it. Pretty simple.
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|Test Chamber 15| [3.07]
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As soon as you enter the test chamber you will see four turrets on the other
side of a hard light bridge. The light bridges stop turrets from seeing you,
so place an entry portal at the end of the bridge and place the exit on the
wall in front of the lone turret standing in your path. Move to the light
bridge, then remove it and get behind the turret. In the next room there are
four more turrets guarding a cube to your right as you enter. Place your exit
portal on the side of the central platform to make a light bridge barrier so
you can continue on.
There are two faith plates on either side at the back of the room. You need to
get onto the mesh platform, but the plates bounce you too far. Place your exit
portal on the wall so that a light bridge comes out and stops you in mid-air.
You will fall onto the mesh platform as a result. There's a glass bridge on
this platform leading to the four turrets. Drop through the hole onto the
cube and you'll be in the middle of the turrets.
Destroy the turrets and place the cube on the button in the middle of the
room. This raises the glass blocking the exit door, but there are two more
turrets back there that can now see you. Place the exit portal on the wall just
in front of them. Move to the light bridge, then remove it and get behind the
turrets quickly, then move to the elevator.
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|Test Chamber 16| [3.08]
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As soon as you enter the test chamber, watch out for a turret behind a broken
piece of wall to your right. Just move past him and ignore it for now.
Stepping on the button turns the laser on, so place a portal on the floor where
the laser hits and place another portal on the wall in front of the first
three turrets. The laser will cut through all of them. Move through and grab
the cube, then place it on the button. Now grab the redirection cube.
If you want to, you can place the exit portal on the single white panel below
the camera in the corner, then use the redirection cube to destroy that first
turret behind the wall. It blows away the grating and you can crawl inside.
You'll find another Rat Man den and also four turrets below the floor that are
singing.
If you don't want to, leave the exit portal on the wall and use the redirection
cube to point the laser at the last four turrets. The laser travels through
glass. Leave it pointing at the receptacle to open up the way forward and the
exit door.
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|Test Chamber 17| [3.09]
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In here you'll notice a light bridge with a cube on it blocking a laser. If
the laser hits the receptacle, the lift at the end rises. Obviously you want to
be on the lift first. The cube needs to go on the button to open the exit door.
First, place a portal at the end of the light bridge and get on it. Now, while
standing on the light bridge, look at the big button. You should see a single
white panel on the wall to the right of it. Place your exit portal there. Now
grab the cube and put it on the new bridge in front of the laser. It should
also be over the button.
Now get on the lift and put your entry portal somewhere else. This will cut off
the light bridge, dropping the cube onto the button and allowing the laser to
hit the receptacle.
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