Dark Energy Hopwire

Not to be confused with the Hopwire Grenade

Overview
The Dark Energy Hopwire is a prototype weapon, persumably developed by the Combine.

When used, the Hopwire will roll around harmlessly before stopping. However, upon using a second primary attack, the Hopwire will suddenly jump into the air, and will then violently burst into a vortex that lasts approximately 4 seconds, sucking in any NPCs and props nearby, and blinking them out of existence. Afterwards, both the Hopwire and vortex will vanish.

Curiously, any weapons the NPCs were carrying while being sucked in will not dissapear with them, and can still be picked up.

Acquisition
It is currently unknown if the Dark Energy Hopwire can be found in the default campaign of HL2. If a source or location is found, this page will be updated accordingly.