Cooperative Testing Initiative/Calibration Course

Most beginners (or players who made a reset recently) start from Calibration Course - the first Test Chamber during Portal 2's Cooperative Testing Initiative. Its purpose is to teach player the basics of Cooperative testing, like the Ping Tool, thinking with four portals, etc.

Mechanics

 * Doors
 * Portalble surfaces
 * 3 1500 Megawatt Aperture Science Heavy Duty Super-Colliding Super Buttons
 * 3 Weighted Storage Cube Receptacles
 * 3 Vital Apparatus Vents
 * 4 Pedestal Buttons
 * 13 or 14 Material Emancipation Grills
 * Collapsed panels

Hazards

 * Being crushed by the door
 * Goo

Closed Captions

 * Party Whistle

Trivia

 * Players can use the console command say while the movie is playing...