Kotaku managed to uncover the hidden “Hopwire” weapon in Half-Life 2: Episode 1. Video after the jump. Here’s how you do it:
In console first type “hopwire_vortex 1” then “give weapon_hopwire” now throw it and then press attack again to activate it. It is preferable to do it in an area with lots of physics objects, I also suggest you stand back lest you wish to be crushed into singularity
[via Kotaku]