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.

Gallery

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  The High Energy Pellet in Portal

• Combine Ball launcher.jpg

  High Energy Pellet launcher.

• Combine Ball catcher.jpg

  High Energy Pellet catcher.

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  In Test Chamber 07.

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  In Test Chamber 08.

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  Launcher next to the upgraded ASHPD in Test Chamber 11.

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  In Test Chamber 13.

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  In Test Chamber 15.

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  In Test Chamber 17.

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  In Test Chamber 19.

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  A destroyed High Energy Pellet launcher in a ruined Test Chamber 07.

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  An active High Energy Pellet catcher in a ruined Test Chamber 07, with Wheatley waiting on the right.

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  An 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 re-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.