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Test Chamber 11
testchmb_a_07.bsp 
This Test Chamber is the twelfth level of the game, and introduces the player to the upgraded Handheld Portal Device which allows the creation of both blue and orange portals.
Mechanics
- Unstationary Scaffold
- High Energy Pellet (launcher and catcher)
- Pedestal Button (Retractable)
- Handheld Portal Device (orange)
Hazards
Walkthrough
- Proceed up the stairs and place a portal on a wall or on the floor.
- Wait for the orange portal to be generated behind the platform with the Switch.
- Activate the switch.
- Place your portal on the wall behind the door that opens upon activating the switch.
- Wait for the orange portal to be generated behind you.
- Proceed through the orange portal.
- Place your portal on the piece of wall where the pellet collides with it (marked with a circular piece of scorched wall).
- Wait for the orange portal to be generated opposite to the High Energy Pellet Catcher.
- Proceed through your portal onto the Unstationary Scaffold.
- Walk up to the pedestal to upgrade your Handheld Portal Device.
- Activate the switch that pops up from behind the platform.
- Place one portal on the wall behind the door that opens upon activating the switch.
- Place the other portal on the wall behind the Unstationary Scaffold.
- Use the Unstationary Scaffold to reach your portal and pass through.
- Proceed into the Chamberlock to your left.
Video walkthrough
Related achievements
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Lab Rat Acquire the fully powered Aperture Science Handheld Portal Device. |
Music
Main article: Portal soundtrack
Subject Name Here by Valve Studio Orchestra [1:44]
Radio location
The radio in this level is above the High Energy Pellet Catcher. To gain progress on the Transmission Recieved achiement, you need to bring the radio to the pedestal with the upgraded Handheld Portal Device.
Gallery
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