Take out the first turret by hand, but pick it back up after it’s dead. Go way back to the existing blue portal and come through. Orange portal at ground level behind turret guarding the door.Take out all the turrets up to and including the ones in the button room.
Remember to crouch, and you should never need more than two cubes at a time. It is a little bit like proceeding in the advanced chamber, except with the advantage of being able to get rid of a turret once you reach it. At this point you have many cubes that you can use as shields between you and turret fire. Run up and grab the third turret before it shoots. Go through behind the second turret (take it out if you wish). Orange portal in an accessible location.Come through and take out the final turret.Īgain, flexible, but here’s a likely scenario: Blue portal somewhere in the final room.Backtrack to existing blue portal and come through. Orange portal at ground level behind turret guarding this next door.Orange portal on X above the third turret in the button room.Orange portal on X above the turret facing the entrance in the button room.Go back to the existing orange portal to come up behind them and take them out manually. Blue portal on a ground-level wall behind the two turrets in the next room.Take out the near turret by simply running to it and picking it up before it shoots. Blue portal on the X above the far turret.Run past the third turret to the two turrets facing each other. Which turrets you take out by hand as opposed to with portals is very flexible here, but here’s a possibility: Take out the first turret by hand. Then place a portal as far down the exit hallway as you can, and come on through, moving as necessary to not be shot, and then exit.Ĭhallenges Portals Bronze at 9 portals Enter and immediately portal behind the turret. Now back track to safety and place the other color portal on a wall so that you have access to the other side of the door.īefore entering, be sure to know which way you will be shooting your next portal, as you will only have a brief time before you are shot. Place one portal on a wall just on the other side of the door, and then take the cube back off of the button so that the door closes. Place a cube on the button so that the door opens. You can also get the edge of a cage between you and a turret’s eye so that it will not be able to see you. As you enter with cubes in front of you into the last room, try to get one between you and each turret as you move. The first (relative to the entrance) turret in the room you are currently in will not be a worry, but put two cubes stacked in front of the second turret so that you don’t have to worry about it much (be careful though, as there may be a small angle where it can still shoot you). Head back over and get ready for the last room. Once there, place a portal back on a high wall where you came from, and the other portal under the various cubes, as you may need a lot of them. When you can, portal into the next area behind the next two turrets. Move the cubes to a better placement, and continue. Place a cube on either side of you, and crouch walk until just before one of the turrets will see you. While crouching behind a cube, the turret will not be able to see you, but if you pick the cube up while crouched it will, although the cube will block most of the bullets. If you need more obstacles than the provided cubes (you shouldn’t though), in the side room with the writing there are many brown boxes that, while you cannot pick them up, can be pushed and portaled elsewhere. You will likely have to use cubes to prevent the line of sight between the turrets and you. Then skip the third turret completely by simply placing a portal on the far wall. Next, place a portal on the wall behind the second turret, and walk on through. No picking them up, no hitting them with objects, and no portaling them somewhere else with portals beneath them.įor the first turret, you will have to portal yourself on top of the cage, crouch to get through, and quickly move around the corner. In the advanced chamber, all turrets are enclosed in metal cages from which they can shoot outwards while remaining untouchable.
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