Portal: Prelude Test Chamber 01

This Test Chamber is the second level of the game, and introduces the player to the single-Portal variant of the Aperture Science Handheld Portal Device, the Turrets and the Moving Panels.

Hazards

 * Turrets

Trivia

 * In the version 1.0.0, the turrets are functional even before the acquisition of the Handheld Portal Device.

Music
09. ABS O5 120 Harp - 1:09 by ERH