High Energy Pellet

The High Energy Pellet is a puzzle mechanic introduced in Portal. It is a fast moving energy ball, fired by an emitter built into a Test Chamber surface and usually accompanied by a receptacle that catches it. Players direct the ball into the receptacle in order to activate lifts or devices before it dissipates and explodes. The ball is extremely volatile, and as such instantly vaporizes Chell on contact. Turrets, however, will be knocked over by it. The High Energy Pellet emitter makes a cameo in Chamber 7 of Portal 2, being lifted out and being replaced by a Thermal Discouragement Beam emitter.

A High Energy Pellet in Portal

“

While safety is one of many Enrichment Center goals, the Aperture Science High Energy Pellet, seen to the left of the chamber, can and has caused permanent disabilities such as vaporization. Click to listen — GLaDOS

”

Gallery

High Energy Pellet

The High Energy Pellet in Portal.   High Energy Pellet launcher.   High Energy Pellet catcher.   The alternative version of the High Energy Pellet as seen in Portal test chamber 19.   An Energy Pellet launcher and catcher in Portal 2's Chamber 7.   Artwork found in the Portal 2 ARG, of a destroyed Energy Pellet launcher.   A High Energy Pellet about to hit a Test Subject on an Aperture Science propaganda poster, titled "Courage is Not the Absence of Fear".

Trivia

• The Energy Pellet uses the Combine Energy Ball model from the Half-Life series.
• The Pellet "refreshes" every time it passes through linked portals, meaning the player could keep the ball bouncing until they've discovered the solution to the current chamber.