Electricity Field

The Electricity Field is a circuit capable of electrocuting and killing the player whenever active. It switches on and off periodically, forcing the player to wait until it's safe to enter. It was introduced in Portal: The Flash Version, and later appeared in Portal: Still Alive's Challenge Maps.

Appearances

 * Portal: Still Alive
 * Portal: The Flash Version (2D)
 * Portal: The Flash Version MapPack

Appearances in mods

 * Portal: Prelude (different function and appearance)

Trivia

 * The Electricity Field's off and on times are 3 and 4 seconds, respectively.