Chapter 1 - Test Chamber 05
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Chapter 1 - Test Chamber 05
sp_a1_intro5.bsp 
This is the fifth level in the game; it introduces the player to the basics of momentum and features the use of panels.
Hazards
- Toxic Water
Walkthrough
- Fire a portal at the ground and pass through it in order to bypass the broken wall.
- Place a portal beneath the Vital Apparatus Vent to the far right of the room, then press the button below the orange portal to release a Weighted Storage Cube
- Place the newly acquired cube onto the Heavy Duty Super-Colliding Super Button to activate the panel-based staircase to the left; ascend these stairs to reach two buttons.
- The button to the left controls an apparatus vent, the button to the right controls a large panel which will rotate 90° clockwise. Press the left button first and then place a portal on the platform below the vent. The button to the right should then be pressed as the cube is leaving the vent in order to halt the cube after it has passed through the portal.
- Bring this cube up to the second super button in order to open the door to the chamberlock.
