Portal: Prelude Test Chamber 00
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This Test Chamber is the first level of the game, and introduces the player to the supervisors Mike and Erik, as well as Portals, the Weighted Storage Cube, the Heavy Duty Super Colliding Super Button, the Chamberlock and the Emancipation Grill.
Test Chamber 00
level_01.bsp 
Hazards
Walkthrough
- Wait until the orange portal is activated, and then go on the Heavy Duty Super Colliding Super Button to activate the blue one.
- Take the Weighted Storage Cube and put it on the button.
- Go through the portal and proceed to the chamberlock behind the door.
Video walkthrough
- To do