Portal Test Chamber 13 (Advanced)
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Test Chamber 13
testchmb_a_08_advanced.bsp 
This chamber is the first advanced level of the game. This version of the chamber adds goo as an extra challenge, and only contains one Weighted Storage Cube.
Hazards
- Pellet Hazard
- Cube Hazard
- Goo
Walkthrough
- Make your way forward and walk onto the Heavy Duty Super-Colliding Super Button.
- Place a portal over top of the first platform, and place the other on another surface.
- Walk though the portal, and land on the first platform with the Super Button.
- Redirect the Energy Pellet into the receptacle by placing portals where the scorch marks hit the wall, and the orange light on the ceiling.
- Place a portal on the ceiling above the Unstationary Scaffold and one on the wall next to you, then wait for the scaffold to move into position to be underneath your portal.
- Jump though the portal and pick up the Cube.
- Wait for the scaffold to move in front of the door, and jump on to the steel grate.
- Place the Cube on top of the Super Button.
- Make portals on the walls to the first platform, and stand on the button.
- Shoot a portal at the wall where the door opened, head though the portal on the wall, and proceed to the Chamber Lock.
Alternative Solutions
- You can also land on the Pellet receiver from the scaffold, and jump across to the wall.
