Test Chamber 19 (Escape)

testchmb_a_15.bsp

This is the final Test Chamber and twentieth level of the game. It features the Unstationary Scaffold and High Energy Pellets, and Goo is present as the primary hazard. The player must utilise Flinging and precise portal placement in order to proceed.

Hazards

Walkthrough

Walk to the end of the hallway. Shoot portals on the tilted panels to get the Pellet to the catcher. If you didn't succeed, wait for the Pellet to be on the side of the catcher and then place the portal from under the emitter to the wall in front of you.
Hurry on the Unstationary Scaffold and duck to get to the other side of the metal pipe.
Jump on the platform on the corner and then get back on the Scaffold, when it is on the other side of the platform.
Turn to face the switch and press it as soon as you can.
Turn around and shoot a portal to the other side of the opened door.
Fire the other portal on the wall near you and when the platform is in front of the other portal, go through the portal.
Place a portal at the end of the hall near the ceiling. Put the other portal on the wall where the Pellet is bouncing off.
Fire a portal on the wall ahead and the other portal on the wall on the left - behind the wall.
Watch through the portal as the platform moves to the other side. Wait until you see half of the platform and then go through the portal on the same platform.
Prepare yourself for the cake.

Wait for the Unstationary Scaffold to move closer to the Incinerator. Fire a portal on the wall ahead but make sure the portal is above the handrails.
Place a portal on the wall nearest to you and jump through that portal.
Turn around and shoot a portal as high as you can on the same wall. Put the other portal on the center of the floor and fall through.
Run to the left until you reach a place with a set of stairs and a catwalk.
Fire a portal on the wall above the catwalk. Place the other portal on the floor and go through.
Go through the door on the wall to get in the room. Go up the stairs and go to the end of the catwalk.
Fire a portal behind the fence and the put the other portal on the wall next to you and go through.
Go through the door and walk forwards. Shoot a portal on the wall behind the huge fan on the left and place the other portal on the floor and go through.
Turn to face the area above the Goo and fire the other portal on the wall ahead. Go through the portal.
Walk to the door on the wall on the left. Fire a portal on the wall next to you and the other portal on the wall above the catwalk. Run through the portal to get on the catwalk.
Head for the other end of the catwalk and go down the stairs. Fire a portal on the floor and place the other portal on the wall above the platform higher up. Go through the portal.
Shoot a portal in the corner facing the broken catwalk. Put the other portal on the floor below yourself and jump through.
Go up the stairs and jump over the handrail into the broken transportation tube.
Wait for the end of the ride. Then jump down to the test chamber and walk past the Material Emancipation Grill.
Go stand on the button and fire a portal on the wall through the opened door. Place the other portal near you and go through.
Head for the elevator shaft and jump down.
Shoot a portal on the floor and put the other portal on the white surface behind the fence. Go through the portal and duck.
Walk towards the two moving pistons and go stand on the one that goes higher up. Wait for the piston to be extended and then fire a portal on the surface above your last portal.
Go back to the portal you've placed before and jump through it.
Wait for the larger piston to start extending and then jump on it. Go to the area at the end of the piston.
Turn left and fire a portal through the small hole. Wait for the piston to extend again and then go back to your portal.
Go through the portal and place a portal on the wall opposite of the portal next to you. Jump through the portal.

Alternative Solutions

- in progress -

Video walkthrough

[[Media:Template:Dictionary/demonstration/ejjgjrjgjjjvjrjdjwie|Download demo file]]

Provided ID could not be validated.

Related achievements

Portal

Camera Shy
Detach security cameras from the walls.

Partygoer
Make the correct party escort submission position decision.

Portal: Still Alive

Tests Like Chicken
Find the chicken's test results.

Music

Main article: Portal soundtrack

Procedural Jiggle Bone by Valve Studio Orchestra [4:34]
4000 Degrees Kelvin by Valve Studio Orchestra [1:01]
Stop What You Are Doing by Valve Studio Orchestra [4:00]

Trivia

There are rooms accessible outside chamber 19 that are looking out over parts of test chambers 09 and 14.
The test chamber you end up in after riding the cube dispenser tube is Test Chamber 09.