Portal/Chamber 17: Difference between revisions

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Portal/Chamber 17 (edit)

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'''Gold by Sheer Speed''' : To give an idea of the speed required for gold level, you should be at the top of the stairs with your cube, ready to jump down the corridors, about 20 seconds in. For those stairs, if you jump backwards off the cube, you will be able to grab the cube as you jump and then continue.  You should be sending the pellet into '''Receiver 2''' in the side room at around 40 seconds in.  '''Receiver 1''' should be activated as before.  In the room with '''Receiver 3''', hurry to put the cube on the button at the back, tossing it up if you can, and, if you are on schedule, you should be able to make it back to the floor button in time for a pellet that just came out of the blue portal in the extended, ground-level panel to travel through the door that is opened by that button.  Go back to retrieve the cube; at this point you should be just under a minute in.  Get back to the portalable surfaces in the main room.  Drop the cube, shoot a portal above the first raised platform, and the other near the cube.  Grab the cube and take it through onto the platform.  You need to get the cube on the last button at around 1:12.  That leaves you fifteen seconds to open the incinerator, toss the cube in and get to the chamberlock.  These are very difficult times to make unless you have mastered a technique for "walking" very quickly.
'''Gold by Sheer Speed''' : To give an idea of the speed required for gold level, you should be at the top of the stairs with your cube, ready to jump down the corridors, about 20 seconds in. For those stairs, if you jump backwards off the cube, you will be able to grab the cube as you jump and then continue.  You should be sending the pellet into '''Receiver 2''' in the side room at around 40 seconds in.  '''Receiver 1''' should be activated as before.  In the room with '''Receiver 3''', hurry to put the cube on the button at the back, tossing it up if you can, and, if you are on schedule, you should be able to make it back to the floor button in time for a pellet that just came out of the blue portal in the extended, ground-level panel to travel through the door that is opened by that button.  Go back to retrieve the cube; at this point you should be just under a minute in.  Get back to the portalable surfaces in the main room.  Drop the cube, shoot a portal above the first raised platform, and the other near the cube.  Grab the cube and take it through onto the platform.  You need to get the cube on the last button at around 1:12.  That leaves you fifteen seconds to open the incinerator, toss the cube in and get to the chamberlock.  These are very difficult times to make unless you have mastered a technique for "walking" very quickly.


'''Gold, Bypassing Platforms''' : Another option is to take the cube through to the rising platform area and place it in the right-hand corner of the alcove directly below the the path to the final floor button (that leads to the incinerator button). Head back to the main testing area without the cube, placing one portal on the right wall as close to your cube as possible.  Approach the camera on the wall ahead and get into a position so you can catch it while it is in its normal orientation.  Fire the second portal on the wall behind the camera to detach it and catch it mid air. Take it back to the cube and place it on top of the cube so you have a tiny set of stairs up the right corner. Hop up and make your way to the final floor button, placing the same color portal you used to remove the camera next to the button to fall through. You will exit through the low wall portal near your cube. Grab it and go back through, place on button, activate the incinerator, toss the cube in and head to the exit.
'''Gold, Bypassing Platforms''' : Another option is to take the cube through to the rising platform area and place it in the right-hand corner of the alcove directly below the path to the final floor button (that leads to the incinerator button). Head back to the main testing area without the cube, placing one portal on the right wall as close to your cube as possible.  Approach the camera on the wall ahead and get into a position so you can catch it while it is in its normal orientation.  Fire the second portal on the wall behind the camera to detach it and catch it mid air. Take it back to the cube and place it on top of the cube so you have a tiny set of stairs up the right corner. Hop up and make your way to the final floor button, placing the same color portal you used to remove the camera next to the button to fall through. You will exit through the low wall portal near your cube. Grab it and go back through, place on button, activate the incinerator, toss the cube in and head to the exit.


'''Gold by Patience and Perseverance''' : Play as for silver, above, up to the point where you place the blue portal on the extended, ground-level panel.  You must play fast enough that there is a pellet on its way to you when you do this.  Save the game.  Instead of entering the room with the two doors and two buttons, stand to the left of the doorway.  Hold the cube so that the pellet will strike its edge and be deflected through the door towards the right-hand wall.  If the pellet travels at exactly the right angle, it will enter the receiver behind the doors and make the last platform go up.  Obviously, it's going to take lots of trial and error before you get into the exact right place to make this happen.  Use one or more saved games so that you can adjust your position by tiny increments.  When the pellet looks to be going the right way, immediately make a run for the exit.  It's no use waiting to see if the last platform rises, you need to act as if it will and portal up to the first platform as soon as the pellet strikes the cube.  Put the cube down, place the portals and dive through, picking the cube up again.  If, when you get to the third platform, it isn't rising, try again from your saved point.  And again.  And again.  Eventually, with patience and perseverance, you will get it to work.  Then, just hope that your time to the exit gets you the gold medal.
'''Gold by Patience and Perseverance''' : Play as for silver, above, up to the point where you place the blue portal on the extended, ground-level panel.  You must play fast enough that there is a pellet on its way to you when you do this.  Save the game.  Instead of entering the room with the two doors and two buttons, stand to the left of the doorway.  Hold the cube so that the pellet will strike its edge and be deflected through the door towards the right-hand wall.  If the pellet travels at exactly the right angle, it will enter the receiver behind the doors and make the last platform go up.  Obviously, it's going to take lots of trial and error before you get into the exact right place to make this happen.  Use one or more saved games so that you can adjust your position by tiny increments.  When the pellet looks to be going the right way, immediately make a run for the exit.  It's no use waiting to see if the last platform rises, you need to act as if it will and portal up to the first platform as soon as the pellet strikes the cube.  Put the cube down, place the portals and dive through, picking the cube up again.  If, when you get to the third platform, it isn't rising, try again from your saved point.  And again.  And again.  Eventually, with patience and perseverance, you will get it to work.  Then, just hope that your time to the exit gets you the gold medal.
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