Robodog

Robodog is a recruitable companion of Fallout 2.

Background
It is a cyberdog, more specifically "Cyber-Hound Mk II, Personal Security Model".

Interactions with the player character
The Chosen One may acquire this companion in NCR by assisting Dr. Henry in his Mutagenic Serum experiment.

Appearances
Robodog appears in Fallout 2 and fallout new vegas