One would think that guarding the same area for hundreds of years, no matter how enchanting, would bore even a robot, but MX2000 was a particularly dedicated breed. He took pride in the fact that after hundreds of years he was still oiled, vigilant, and successful. In the beginning, a few adventurers had attempted to enter the gates, but they had all been unsuccessful. Either they had arrived, realized their peril, and departed, or they had been killed in successive attempts. No matter. No one would get past MX2000. No one.
His metal alloys reflect the blue tint to his exoarmor. The black parts however seem to absorb the light.