Roboshark

Roboshark was a normal great white shark until it ate an alien probe transforming it into Roboshark. It was destroyed when the Space Needle fell on it. Because it destroyed a U.S. Navy submarine, a bomber and a seaplane, its kill count is over 180.

Appearance
Roboshark was whitish in color with glowing red circuitry covering it. Its gills stored guns and its teeth were on vertically rotating sawblades. Despite being completely robotic in appearance, it is only a cyborg and not a robot because it still expressed the need to eat.