Portal/Chamber 18: Difference between revisions

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=== Portals ===
=== Portals ===
Award at 30
Part 1, 2 Portals Needed, 0 Portals Used
 
From the starting point, walk forward until you reach the ledge. Look at the ceiling on the far side of this area. If you look to your right, at the edge of the ceiling, you might be able to see a higher ceiling beyond the obvious ceiling you're looking at already. You may have to move around a bit to see it. Place an exit portal on the non-obvious ceiling then place an entrance portal on a wall behind you. Look through the portal and you'll see a surface you can land on to your right. You will have to move right while falling or you will fall into the liquid.
 
Part 2, 2 Portals Needed, 2 Portals Used
 
Looking around, you should be able to identify the area you were just at. Looking left of that area, you will see a platform higher than your present location. Place an exit portal at the ceilng above it and place an entrance portal where convenient. When going through the portal, you will be falling straight down.
 
Part 3, 2 Portals Needed, 4 Portals Used
 
Identify the area you were just at. Look right. You will see two elevated areas; one to the right and one to the left. In between those there will be a platform that is lower than where you are now. Place an exit portal at the high-left-area's wall. You will be using this in a moment to fling  to the high-right area. Now jump down to the lower area and place a portal at the floor. IMPORTANT: DO NOT RE-CREATE THIS PORTAL - YOU WILL BE REUSING IT FROM ITS CURRENT LOCATION ON THE FLOOR. Walk and fall through the portal on the floor. You will be on the area previously identified as the high-left area. From here, jump down into the floor portal you made a moment ago to fling yourself to the opposite high-area. If all was done correctly, you should be standing right next to a button.
 
Part 4, 1 Portal Needed, 6 Portals Used
 
Quickness is important for this next part. You need to press the timer-button, run around the right side of the piston-door and place a portal on its wall surface when it has stopped moving (in the 45 degree position). Do not re-create the important floor portal mentioned earlier. Also, you will be shot at and likely hit while doing this. You must run back to the important floor portal and jump into it. You will be flung across the room of turrets to the far side of it and you will find a weighted storage cube. Pick it up; you will need it in a moment for the button you saw earlier. You may also need to use it to block the turrets from shooting you.
 
Part 5, 1 Portals Needed, 7 Portals Used
 
There is a room directly below where you're standing. This part can be tricky. You'll need to walk towards the ledge, fall off, and then immediately move backwards so that you land on the ledge of the room below you. If you fail to land on the ledge below you, you will fall into the liquid. From here, there will be a wall on your right. Put a portal on it - again, not the all-important floor portal. You can drop the cube off through the wall portal or jump with the cube. Take note that you will be jumping into a wall portal and coming out through a floor portal, so you must be sure to move sideways immediately or you will fall back in.
 
Part 6, 2 Portals Needed, 8 Portals Used
 
You are now standing next to the important floor portal. You will see two high areas above you (not the less-high platform). If you move around, you should see a wall that you can shoot a portal at. Place a portal on that wall - again, not the important floor portal. Step into the floor portal. You should land on the high area and there will be the other high area with a button on the other side. You can throw the cube through it first so that it lands on the other side or jump with the cube if you think you are able to do it. In either case, you want to be on the side that has the button with the cube in your possession. Place the cube on the button. Walk to the ledge and jump to the lower area that has the floor portal but do not jump through the portal. Instead, simply walk into the portal once you have landed. You should now be on the high area opposite of the high area with the button. The door is now open and you can walk through it.
 
Part 7, 5 Portals Needed, 10 Portals Used
 
Walk through the door and keep walking until you fall to a lower area. You will see platforms in front of you and a large drop to your left. If you have played this area before, you should know what to do and it should work fine. If not, continue reading. This part requires timing and thought. If you take a look at the platforms in front of you, you may notice that they progressively get higher. What you'll need to do here is put a portal on the bottom of the large drop you saw when you came in (that was on your left). You will also initially need to place another portal on the first platform. What will happen when you jump through the portal on the bottom of the large drop is you will be propelled upward high enough so, that at the peak of your launch upwards, you can send another portal to the next higher area. You must also alternate portals if you consider that if you just exited upwards from an orange portal, you will be falling back into the same orange portal when you come back down, which means you'd then need to place a blue portal on the next highest area (or place an orange portal if you just exited out of a blue portal). You will launch upwards out from four platforms this way. On the fourth one, there is an angled surface (45 degrees) on a far wall. When you are launched upwards from the fourth platform, you'll need to place another portal there as if it were the next platform. When you exit from that angled surface, you will be launched across the room to the exit.
 
If everything has been done correctly, you will have used 15 portals, which is 1 less than needed for the gold ranking.
 
=== Steps ===
=== Steps ===
Award at 150...
Award at 150...
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