EMP Tool

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The EMP Tool is an electromagnetic pulse multitool mainly used by Alyx Vance for several purposes. While it is never named in-game and that its model name is simply "tool", its name is given by its texture file, named "emptool_sheet".

Overview

 * Alyx always has it attached to her belt.


 * With it, Alyx can bypass security systems or open locked doors.


 * It can be used to hack Combine computers to access the information they have, such as locations of vital areas.


 * In Episode One, Alyx also uses it to re-program Rollermines to attack Combine troops, Zombies, Overwatch Snipers and Stalkers.


 * All of the previous functions are done by a lightning bolt coming from the multitool to the affected object.


 * The tool can also be used to store information. Alyx uses it to store Judith Mossman's message and encrypted files, after which she delivers it to Isaac Kleiner for analyzing when arrived at White Forest.


 * At the end of Half-Life 2, Judith Mossman threatens Breen with it, meaning the tool can be used as a weapon against living objects (or simply that it looks threatening and that Breen is scared of it).


 * Afterwards, Mossman frees Gordon from his Combine Cell with it, which is similar to its ability to defeat locks on doors.

List of appearances

 * Half-Life 2
 * Half-Life 2: Episode One
 * Half-Life 2: Episode Two