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    Walkthrough by TGMasaki

    Version: 1.00 | Updated: 10/12/07 | Printable Version | Search This Guide

    PORTAL Walkthrough
    
    Sites allowed to use the walkthrough:
    GameFAQs - gamefaqs.com
    Neoseeker - neoseeker.com
    Super Cheats - supercheats.com
    
    
    +++++++++++++++++++++++
    +++Table of Contents+++
    +++++++++++++++++++++++
    1. Version History
    2. Walkthrough
    3. Contact Info
    4. Legal Stuff
    
    ************************
    ***1. Version History***
    ************************
    v1.00 - October 12, 2007
    Just have the walkthrough for the normal game. Advanced and challenge maps
    not included.
    
    ********************
    ***2. Walkthrough***
    ********************
    
    ---Test Chamber 00---
    You will be stuck in your room for minute. Throw things into the toilet and
    flush it or something. Once the time is up, a portal will open so go through
    it. Go around your room and you will see a red button. If you step on it, the
    door will open and a cube will drop. Get the cube on the red button and move
    through the door and into the elevator.
    
    
    
    ---Test Chamber 01---
    Go forward and jump down. There will be a yellow portal right behind you. A
    blue portal will be changing location. Just wait until you can see the cube
    through the yellow portal and go through to get it. Go back out and wait until
    you can see the red button through the yellow portal. Go through, put the cube
    on it and go back through the portal. Now wait until you can see the opened
    door and go through the portal and get into the elevator.
    
    
    ---Test Chamber 02---
    Get out of the elevator and move forward. You will have to listen to the
    computer talk then the door will open. Go down the stairs and wait until a blue
    portal is shot infront of you and go through it. Jump down and get the portal
    gun. Shoot it anywhere and go through the blue portal, turn right and get into
    the elevator.
    
    
    
    ---Test Chamber 03---
    Get out of the elevator and shoot a blue portal anywhere and go into it. Turn
    right and shoot a blue portal next to the door leading to the elevator and go
    intot he yellow portal and move into the elevator.
    
    
    
    ---Test Chamber 04---
    Move toward the red button and go forward a bit more. A cube will drop into a
    pit. Jump in after it and shoot a blue portal. Pick up the cube, go through the
    portal, and put the cube on the red button. Now go into the elevator.
    
    
    ---Test Chamber 05---
    Go into the room with the two red buttons. Turn right and jump into a pit.
    Shoot a blue portal, pick up the cube, go through the portal, and drop the cube
    off the platform. Shoot a blue portal to the opposite side in front of the
    other cube and go through the orange portal. Pick up that cube, jump down and
    put one cube on each button. Go through the door and shoot a blue portal, go
    through it and into the elevator.
    
    
    
    ---Test Chamber 06---
    Go foward and you will see an energy ball bouncing up and down. Just to the
    right of the machine creating the energy ball, you should see a red glow on the
    ceiling. Shoot a blue portal there and the platform will lower for you to get
    into the elevator.
    
    
    
    ---Test Chamber 07---
    There will be an energy ball bounching left to right. Shoot a blue portal to
    the wall on the right with the black mark on it. Once the energy ball goes
    through, shoot a portal right above the platform and go into the yellow portal
    and try to land on the now moving platform which leads to the elevator.
    
    
    
    ---Test Chamber 08---
    Go forward and shoot a blue portal at the wall where a black mark is left from
    the energy ball. When the energy ball go through the blue portal, quickly shoot
    a blue portal toward the red glow on the left side of the wall. The platform
    should be moving now. Shoot a blue portal near so and go into it. Shoot a blue
    portal right above the moving platform and go into the yellow portal. Make sure
    the platform is right below the portal or you will fall into the toxic waste
    and die.
    
    
    
    ---Test Chamber 09---
    Go forward, shoot a portal anywhere, grab the cube, and go through the portal.
    Turn slightly left and you should see a hole in the wall. Shoot a blue portal
    through it, pick up the cube, and go through the orange portal. Put the cube on
    the red button and go through to the elevator.
    
    
    
    ---Test Chamber 10---
    Go foward and shoot a portal to the right or left side and go in. Go forward up
    the stairs. Go to the edge and look down. Shoot a portal to the bottom and jump
    into it. Now go through the door. Go to the edge and look behind you. One part
    of the wall is moved forward more. Shoot a blue portal there and jump into the
    orange portal below. Look backwards and the wall will move forward more. Shoot
    a portal there and jump into the orange portal again and you will be launched
    forward toward the elevator.
    
    
    
    ---Test Chamber 11---
    Go up the stairs and shoot a portal anywhere. When you see a small red button
    through the blue portal, go in and press the button. A door in front of you
    will open so shoot a portal to the wall behind the door. Now wait until an
    orange portal is shot behind you and go into it. Go down the stairs and look
    out through the window. When you see an orange portal right above the platform,
    turn right and shoot a blue portal at the black mark on the wall. Look through
    the blue portal and if you see the platform on the other side, go through it
    and onto the platform. You will now be able to shoot an orange portal. A red
    button will appear in front of you. Press it and shoot a portal at the wall
    behind the door that opened. Turn around and shoot the other portal to be right
    above the platform near the wall and go through it and into the elevator.
    
    
    
    ---Test Chamber 12---
    Go forward and turn right. Look up and shoot a blue portal at the wall. Go
    toward the edge and shoot the orange portal onto the floor and jump in. Turn
    around and there will be another indented wall. Shoot a blue portal there and
    go back down and jump into the orange portal. Right in front of the red button
    is an indented wall at an angel.Shoot a blue portal there and go back and jump
    into the orange portal. Pick up the cube and jump back down to the red button
    to place the cube on it. Now jump through the orange portal again and go
    through the door into the elevator.
    
    
    
    ---Test Chamber 13---
    Shoot a portal next to the cube and the other on the lower level so you can go
    through it. Put the cube on the red button and go through the portal again and
    through the door. Jump down and turn around. Shoot a blue portal at the black
    mark on the wall and the orange on the ceiling that has a red glow. The
    platform with the cube on it should be moving. Half way between the moving
    distance is a place where you can shoot a portal. Make sure the platform is
    right below the portal before going into it. Get the cube down and portal up to
    the highest platform with the red button on it. Put the cube down on it and
    jump down to the lower platform with the other red button. Stand on it and
    shoot a portal through the opened door and go through the other portal and into
    the elevator.
    
    
    
    ---Test Chamber 14---
    Go forward and turn left. Some stairs should raise up so go up and turn left.
    There will be a cube. Shoot a blue portal on the wall to the right of the cube.
    The stairs should now be set down. turn left and shoot an orange portal and
    jump into it. Pick up the cube and bring it all the way back to the entrance
    and put it on the red button. Go through the door and in front of you will be
    two moving platforms and one non moving platform above some toxic waste. Shoot
    a blue portal to the other side and an orange on right behind you. Go through
    the orange and into the room with the energy ball. Shoot a blue portal at the
    black mark on the wall and go through it. Make sure you don't get hit by the
    energy ball. Head out the room and back to the energy ball receiver that is at
    the top of the stairs. Shoot an orange portal right above it and the platform
    behind you will be lowered. Get on it and into the elevator.
    
    
    
    ---Test Chamber 15---
    Move forward and there will be a wall in front of you and on top of that is a
    force field. You can't shoot any portals through it. Also once you go through
    the force field, any portals behind you will disappear. To get to the other
    side, turn around and there will be a indented wall above you. Shoot a blue
    portal there and an orange portal anywhere so that you can go through it. Go
    through the orange portal and as you are falling, shoot an orange portal below
    you and you will be launched over the wall. Continue forward and in the next
    room will be a room with and energy ball. 
    
    Stand right in front of the force field that is in front of the platform. Now
    shoot a blue portal above the platform and an orange one to the right of it
    where the black mark is. As soon as the energy ball goes through the portal,
    you need to go through the force field. Shoot a blue portal at the wall where
    the energy ball will move to and the orange portal on the ceiling with the red
    glow. If done correctly, the energy ball will go into the energy ball receiver
    and the platform should be lowered. Get on it and to the next room.
    
    This is similar to the first room, but you can't shoot a portal right below
    you. Shoot a blue portal up at the indented wall behind you. Go through the
    door on the right and up the stairs. Get to the edge of the pit and shoot an
    orange portal onto the floor and jump in. You will be lauched forward, but that
    isn't enough to get over the wall, so quickly shoot an orange portal at the
    floor where you are going to land and this time you will make it over. Turn
    left and look up. Just do the same thing and you will be over on the other
    side. Shoot a blue portal on black mark to the left of the angled wall and an
    orange on the opposite side of it. To get back on the other side, do the same
    thing as before. Go through the door that has opened and there will be moving
    platforms going in the opposite direction of which you are suppose to go.
    Standing in the doorway, shoot a blue portal to the wall in front of you. Turn
    around and shoot an orange portal anywhere. When you see a platform through
    the orange portal, go through it. Now you have to do the same thing around the
    other corner and you will be in another room.
    
    As you enter, a platform will rise. Get on it and there will be a red button.
    Before you press it, shoot a blue portal to the room at the opposite corner and
    an orange portal right behind the red button in your current room. Go through
    the portal and shoot a blue portal right behind the red button in this room.
    Press the red button, quickly turn around and go through the portal and press
    the other red button. Now look out the doorway of the room and shoot an orange
    portal at the indented wall with the red glow and shoot a blue portal onto the
    floor with a black mark. Once the ball goes in, a third platform will lower and
    leads to the elevator.
    
    
    
    ---Test Chamber 16---
    As soon as you go through the door, there will be a turret. Pick it up and
    release it to take it out or you can make it go through a portal to knock it
    down. Continuing forward will be another turrent. Shoot a portal anywhere not
    near you and the other right below the turret to take it down. Keep going and
    there will be a turret to your left. Portal behind it and knock it down or you
    can just avoid it by portaling to the other side. As you continue, there will
    be two cubes and a turret behind a glass window. If you go up the the window,
    crouch and look up you can see a red X on the ceiling. Shoot a blue portal
    there and the orange on a wall. Pick up a cube and drop it through the portal
    to knock down the turret. On the other side is another turret. You do the same
    thing with the other cube to knock it down. There will be more turrets, but you
    can drop cubes onto them to down it down. There won't be a X on the ceiling so
    you will have to aim it yourself. In the room with the red button, knock down
    all three of them and put a cube on the button to open the door. Don't stand in
    front of the door since there is another turret behind it. Grab a cube and
    crouch down so you won't get hit by the turret. Shoot a portal above the
    turret and throw a cube through it to knock it down. On the right side is a
    fench. Portal to the other side. Pick up the turret and bring it to the force
    field to vaporize it and get into the elevator.
    
    
    
    ---Test Chamber 17---
    Pick up the weighted companion cube and go into the next room. You will need to
    use it to get up the steps. Once you are up, pick up the companion cube and go
    through the narrow space with the cube in front to protect you from the energy
    ball. Go through the other narrow space, but you have to walk backwards so the
    cube can protect you. Just make sure an energy ball hasn't been shot before you
    go through it. Shoot an orange portal to the angled wall in front of the ball
    receiver. Turn around and shoot a blue portal at the black mark on the wall. Go
    forward, drop down, and into a dark room. Use the companion cube to deflect the
    energy ball into the receiver. No go into the room with the red button. Put the
    companion cube on the red button in the back of the room. Now shoot a blue
    portal onto the indented wall and go all the way back to the narrow space area
    to get the last energy ball. Shoot an orange portal onto the wall with the
    black mark and run back to the red button. Stand on the red button, but crouch
    and as far to the side as possible so you don't get hit by the energy ball.
    Once the last ball goes in, all the platforms should be up. Retrieve your
    companion and get onto the platforms. Jump across all the platforms and follow
    the pathway. Put the companion cube on the red button. Go through the opened
    door and press the button. Quickly get your companion cube and throw it into
    the fire. Now the door behind you will opened leading to the elevator.
    
    
    
    ---Test Chamber 18---
    Get out of the elevator and go forward. Shoot a portal at the ceiling on the
    other side and another for you to go through. To your left or right is another
    platform you need to get to. Shoot a blue portal near the middle on the left
    side of the ceiling. Go forward to the edge and shoot an orange portal onto the
    wall in front of you, but put it lower so that you can jump into it. To the
    right is another platform. Shoot a blue portal to the ceiling above it and jump
    back down to the previous platform and into the orange portal. To get to the
    next one, shoot a blue portal at the indented wall and an orange right below
    you. Now walk to the edge and look down. Shoot an orange portal down there and
    jump into it. You will be launched into a platform with a red button. Go
    forward and into a room with a small red button. Press it and a wall will move
    forward. Go through it to a room with turrets.
    
    To get rid of the turrets Use the energy ball. Shoot an orange portal at where
    their laser is at and a blue one at any of the four black marks on the wall.
    Once all the turrets are gone, you need to get the ball into the receiver. For
    this you need to be quick. From where you came in, turn left and get into the
    corner. Shoot an orange portal at the indented wall in front of the receiver
    and a blue one on any of the four black marks on the wall. From the corner look
    up and the red button will be up on a pillar. You need to shoot a blue portal
    at the wall in front of it and an orange one right behind you, BUT you do this
    only after the energy ball comes out from the orange portal. Go through the
    orange portal and as you fall, keep pressing E so you can pess the button. Once
    you get the ball in, the platform will be moving. Get on it and get to the
    other side. You won't be able to get to the top part where the cubes are. You
    need to get to the bottom part with the red button. When you press it. The wall
    from where you came from will move forward. Once it is up, shoot a blue portal
    at it. Turn around and shoot an orange portal on either sides of the wall and
    go through. You won't be launched far, but quickly turn right and jump off
    while shooting an orange portal at the floor. This time you will be launched to
    the area with the cube. Now go to the area below it and press the button again.
    Get to the other side and back to the area with the big red button and place
    the cube there. Go through the door to the next area.
    
    Go forward and shoot a blue portal at the lowest platform in the sea of toxic
    waste. Turn left and shoot an orange portal all the way down at the floor. You
    will be launched up high enough to see the higer platforms. Shoot an orange
    portal at that one. Once you go through the blue and out the orange, shoot a
    blue portal at the next platform and an orange at the next higher one. Once
    you are on your fourth platform, look for an angled indented wall. Shoot a blue
    portal there and shoot an orange one at the second platform and jump into it.
    You will be launched near the elevator.
    
    
    
    ---Test Chamber 19---
    Go forward and turn right. There will be two pieces of the floor at an angle.
    Shoot a blue portal on the on one below the thing that creates the balls and
    an orange on on the other one. Once the energy ball comes out, shoot an orange
    portal somewhere else so the ball can get into the receiver. Get on to the
    moving platform. Once it makes a right right, there will be a opening in the
    wall. Press the red button and the door will open, but only for a short time.
    Shoot a blue portal to the other side of it and an orange one right in front of
    you. When you see the platform through the portal, go through the portal. Once
    it makes another right turn, there will be an energy ball bounching left and
    right. Get it to go somewhere else by shooting a portal at the wall with the
    black mark. It will make another right turn. There will be a wall in front of
    you. Shoot a blue portal at the wall and an orange to the left side, but behind
    the wall. As the platform approches the wall, slowly go into the portal, but
    not completely through. Wait until you can see the platform and go all the way
    through. Now it will make a left turn toward a pit of fire. As you approach the
    fire, crouch down and look at the wall in front of you. Shoot a blue portal
    there and an orange to your left or right. Make sure the orange portal is below
    you so you can jump into it. Now turn around and shoot a blue portal all the
    way at the top of wall and an orange at the bottom. Go through the orange and
    as you fall, shoot an orange at the floor where you are going to land to get
    launched to the other side.
    
    Turn left and move forward and up the stairs. Go right through the door. Go up
    another set of stairs and shoot an orange portal through the fence at the
    caution sign. Shoot a blue portal and go through the portal and door. Now shoot
    a portal through the fans. It might take a couople of tries, but once you get
    through go down the ramp a bit and shoot portal to get to the place in front of
    you. On the opposite wall now, shoot a portal near the top and go through and
    land on the catwalk. Go toward the danger sign and down the stairs. Shoot a
    portal to the left above the fence and go through it. Now shoot a blue portal
    in front of the broken walk way and an orange on the floor and jump into it. Go
    up the stairs and into the tube that will carry you to some place. Once you
    stop moving, go through the hole. You will be in one of the earlier test
    chambers so you should know how to get through it. Get to the elevator hole and
    jump down. Look at the fence and shoot a portal at the cramp little area and
    the other portal at where you landed. Get out from under there and get to the
    machine pillars things that are moving up and down. Get on the one that moves
    the highest and shoot a blue portal on the top of the thing you were under. Get
    back under there and shoot an orange portal and jump up out of there. Find a
    red picture of a person and arrow and get there by going on the pump thing.
    Shoot a portal through the fence and get to the other side.Now you will be on
    top of a clear tube. Look up and shoot a portal where you can and jump through
    the other. Keep moving forward and you will be in a room with five pumps going
    up and down. Get on the one on the lower right or left. Shoot a blue portal to
    the ceiling right above it and another at the wall right above the broken
    ladder. Keep moving and you will see two more pumps going up and down. Look
    left and shoot a portal at the ceiling and the other right above the pump that
    is going up and down. Go look for a red drawing with a arrow pointing up.
    Shoot a portal through the fence and get there. Now turn right and look up.
    Shoot a portal to the highest part of the wall. As you go through and fall
    down, shoot a portal below you. Turn left and there will be some fast paced
    pumps moving. Shoot a portal to get to the other side. Turn left get to the
    other side of the two big pumps. Now portal your way up to the highest pumps,
    and shoot a portal on the floor near the red arrow. Go down into the tubes and
    crawl your way around. When you see an area with a huge pump, shoot a portal
    right above it the cracked wall. Go back to the tube and face the pump. Look
    right and make a portal there. When you can see the pump, jump through the
    portal. Move forward and when you see red arrow pointing down, jump down and
    keep moving. You will eventually fall down into an area with three doors.
    
    Shoot and orange portal away from the side of the room with all the barrels.
    Go up to the door with all the barrels in front of it. When a door opens, there
    will be a turret behind it. Shoot a blue portal under it as soon as you can.
    The next door that will open is the one to the right of it and then the last
    one will be opened as well. The room that was opened last has a claw hanging
    down from it. Look up and try too shoot a portal at where you can and get
    there. There will be two turrets on the other side of the fence. There is only
    one that is active so knock it down if you want, but don't have to. Shoot a
    portal right above the tube and get on top of it. Jump across onto the walk way
    and go towards the light. Crawl into the duct and below you is a turret. Jump
    down on it and knock it over. Move forward and a the wall will open. Move
    forward a bit and turn around. Shoot a blue portal onto the angled wall and an
    orange one on a wall. Once you go through, you will fall so quickly shoot an
    orange portal on the floor so you can be launched onto the walk way. Go forward
    and you will go through a force field. Go through the door and press the red
    button.
    
    A missile turret will pop out. Let it lock onto you so when it fires the
    missile, it will destroy the window. Once the window is destroyed, go to the
    other side and get it to destroy the other window as well. Go through the
    broken window and shoot a blue portal at the wall in front of you. Turn right
    and leave the room and you will get to another room with a window. Shoot an
    orange portal in front of the window and get the turret to destroy the window.
    Go through the window, turn right, and look up. You will need to the turret to
    destroy the tube. Get an orange portal up on the wall in front of the tube
    behind all the pillars. Get the turret to lock onto you and when the missile
    gets through th orange portal, you must shoot a blue portal behind you and then
    arrange the height of the orange portal so that when the missile goes through,
    it can hit the tube. Pick up the cube and carry it to the went and use it to
    help you get into it. Crawl through the went and there will be a fan. You have
    to shoot a portal between the blades and onto a wall and go through. Getting
    through the sewers will be easy and when you hit a dead end, look up and shoot
    a portal through. Once you are through, you will be in sewage. Shoot a portal
    up and once you are up, a bunch of turrets will appear. Jump back into the
    sewage so they can't hit you. Find which crevice they are in and portal to them
    and knock them down. Once they are all gone, get into the highest crevice.
    Right across from it is an angled wall. Shoot a blue porta at it and an orange
    one at the floor and jump in. When you are airborn, shoot a blue one at the
    angled wall in front of you. As long as you get a portal onto that one, just
    shoot an orange portal anywhere and jump in. As soon as you jump in, you will
    be falling again, so shoot an orange portal below you and you will be launched
    across to the next area. As you move forward, two turrets will be brought down.
    Shoot a portal under them to knock them over. Shoot an orange portal at where
    the turrets were and head back to the edge of the area. Shoot a blue portal
    all the way down to the floor and jump into it. Make sure you don't hit the
    angled wall. You will be launched up into the next area where you have to walk
    across a long walk way.
    
    Navigate your way around the place and you will find a door that you can open
    and through it is a force field. Move up to the computer. After it talks for a
    while something will drop. Pick it up and bring it to the furnace which is
    closed. Shoot a blue portal right next to it and an orange portal to the left
    of where you came in. Press the red button and the furnace will open so throw
    the thing into it. Now go 90 degrees right of the entrance and set up the two
    portals. One is at ground level and the other should be around the same height
    as the computer. Now wait for the missile turret to come out. Let it lock onto
    you and launch the  missile through the portal. You might have to adjust the
    top portal a bit to the left or right so the missile will shit the computer. If
    the computer is hit, one of the round core things will drop out. Get it and
    dump it into the furnace. Repeat this for three more times and you beat the
    game.
    
    Enjoy the ending and song. What you can do now is try to get all the
    achievements or go to the advanced and challenge maps.
    
    OH YEAH! Enjoy your cake.
    
    *********************
    ***3. Contact Info***
    *********************
    If you have any questions you can e-mail me at TGMasaki@gmail.com.
    Just don't give me spam or anything!
    
    ********************
    ***8. Legal Stuff***
    ********************
    This FAQ/Walkthrough is Copyright 2007 by Benjamin Lam.
    This may not be reproduced under any circumstance without my permission unless
    it is for personal use. Sites that are allowed to use my work are listed at the
    top of this FAQ/Walkthrough. Sites not listed here, but were listed on my
    previous works are allowed to use them. Sites listed here, but were not listed
    in my previous works are allowed to my previous works.
    *******************************************************************************