This subject is related to the Portal era.
This subject is related to the Portal 2 era.
This subject is related to the Lego Dimensions universe.
This is a safe article. Click for more information.

Aperture Science High Energy Pellet

From Combine OverWiki, the original Half-Life wiki and Portal wiki
(Redirected from High Energy Pellet)
Jump to: navigation, search

This article is about the Aperture Science energy ball. For the Combine ball, see Energy Ball.

Born.png This article would greatly benefit from the addition of one or more new images.

Please upload one or several relevant images (from canonical / official sources) and place it here. Once finished, this notice may be removed.

Ball 2.png
Aperture Science High Energy Pellet
General information

Aperture Science


Energy ball

Used by


Game information



Scott Klintworth[1] (launcher and catcher)

"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."

The Aperture Science High Energy Pellet is a testing element used in the Test Chambers of the Aperture Science computer-aided Enrichment Center.


The first High Energy Pellet in Test Chamber 06.
  • An energy ball that kills Test Subjects in a single hit and thus must be avoided at all costs, it is used in Test Chambers to allow Test Subjects to proceed further, by opening doors, raising or lowering platforms, or activating Unstationary Scaffolds. To do so, the ball is launched by its launcher and must reach its catcher. Most of the time Test Subjects have to direct it through a portal so that it reaches the catcher. Once placed, the catcher closes, holding the ball inside, the ball launcher stops creating energy balls, and the linked object(s) opens and/or activates.
  • High Energy Pellets tend to disintegrate after a few seconds, typically twelve or sixteen seconds. A new one is then deployed after a short delay.
  • It also includes a green variant that never disintegrates. It is seen in Test Chamber 19.
  • The High Energy Pellet is first introduced in Test Chamber 06 and is present in most of the following Test Chambers. In Test Chamber 17, Chell must use two corridors where Energy Pellets come and go. This is where the Weighted Companion Cube is introduced to protect her against the balls.
  • It can also be used against Sentry Turrets. However it just pushes them and does not destroy them.
  • The Pellet appears to recharge when going through portals, which will lengthen its life by six seconds if its current lifetime is less than six seconds.

Behind the scenes[edit]

Video game-wise, the High Energy Pellet is identical in almost all aspects to the Combine Energy Ball; it has the same appearance and the same sound effects, but it instantly kills the player.


  • Although the Pellet itself is not used in Portal 2, the launcher makes three appearances, and the catcher appears too. In GLaDOS' Test Chamber 01, the launcher and catcher are seen being replaced with Thermal Discouragement Beam emitter and catcher respectively. In ruined Test Chamber 07, the launcher's workings can be seen, however, the launcher to be yellow cone-shaped device much larger than the actual launcher on the workings. In the ruins of Test Chamber 19, the Pellet Launcher can be seen but the reciever cannot.
  • If the spawn code is used for this prop in Portal 2, an untextured cube will appear.





Portal 2[edit]

List of appearances[edit]

Main games[edit]