Portal: Prelude Test Chamber 17: Difference between revisions

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== Walkthrough ==
== Walkthrough ==
{{Spoiler|block=yes|
{{Spoiler|block=yes|
* To do
* Go on the [[Unstationary Scaffold]]. Place a portal on the wall where you are going and the other on the ceiling above the ledge.
* Pass through the portal. Now, crouch and look at the next part of the room. Fire a portal on the wallpanel marked with a two dots sign.
* When the Unstationary Scaffold has arrived at the end, place the other portal under you and go through it.
* Look up and shoot the same portal as the previous through the pipe. If the Unstationary Scaffold has already restarted the move, place the other portal on a wall just above the [[Goo]] and pass through it.
* Put a portal through the long pipe. When the moving panel is extended, enter in the den and place the other portal here.
* Quickly after going through the portal, place a portal under each [[Turrets|Turret]].
* Fire a portal right facing the [[High Energy Pellet]] Catcher and the other through the pipe on the floor, then pass through the portal.
* Place the same portal as the previous where the pellet is bouncing, then wait for it to reach the catcher.
* Wait for the Unstationary Scaffold to come back at the chamber entrance if necessary, then go onto.
* Look up, then put a portal the pipe on the ceiling and the other on the wall where you are going.
* Pass through the portal. Shoot a portal through the pipe on the wall and the other on the white floor.
* Grab the [[Weighted Storage Cube]], go through the portal, knock over the turrets and go down.
* Place a portal through the pipe and the other near you. Quickly, pass through the portal with the cube and go on the middle of the grating.
* Quickly, shoot the same portal as the previous under the grating, move to the portal to throw the cube on the [[Heavy Duty Super-Colliding Super Button/fr|button]] and come back on the middle of the grating.
* Do the reverse path using portals, until you reach the [[Switch]]. Prepare yourself for the timed puzzle.
* Press the Switch and go back on the middle of the grating at the final room. Place a portal on the white panel facing the exit and the other portal near you.
* Jump just after passing through the portal to reach the exit.
* Go to the [[Chamberlock]].
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