A high-tech weapon from Valve Software's First-Person Shooter, Half-Life.

This gun makes an appearance near the very end of the game. It's a very powerful weapon which gibs everything it kills. It fires a continuous blue beam that quickly burns through ammo, but destroys opponents. You should never use the gun against anything but the toughest enemies.

It is nicknamed the Egon Gun since it resembles the weapons from Ghostbusters, which were created by Egon. It shares ammo with the Tau Cannon.

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