Dunatis

Dunatis is a robot that acts as a boss in Final Fantasy Legend II - the machine is faced by the heroes shortly after they find a girl by the name of Lynn, who had been looking for a potion to save her mother's life but was unable to get past the formidable robot: who was programmed to be aggressive to all intruders (uttering "eliminate!" several times). However like most enemies in the game he was fairly powerless against the heroes and was defeated - which earned Lynn the X-Potion which she used to save her mother.