Cooperative Testing Initiative/Calibration Course

Most beginners (or players who made a reset recently) start from 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...