Gigiaru resembles three gears, with six teeth on the smaller two and eight teeth on the bigger one, interlocking. The teeth of the smaller gears are a light gray, while their central regions are much darker. The teeth of the bigger gear are a medium gray and its central region is also darker. The left eye of the smaller gear is a simple "
O", while its right eye is very wide with a black pupil and a white cornea. It has a round green nose and a small mouth that is held wide open. The large gear's left eye is a black square, and its right is a black circle. Its mouth is a sharply angled white frown.