Ziggy has a silver face vaguely reminiscent of a skeleton. He is made completely from metal and has black, metallic pieces covering his neck and surrounding his face. He wears a gold crown with a dark purple jewel in the middle and he has large, gold horns protruding from either side of the crown. He adorns himself with a large, red cape with gold trimmings with two gold skeletons on each shoulder. This cape covers his metallic body armor which has a beast with an open mouth and silver teeth adorned on the front.
Ziggy is a kind and caring robot, and seems to possess tremendous knowledge on a great many things, even those that lie outside Granbell Kingdom. He seems to have deeply loved Shiki as his grandson, having brought him along to Granbell Kingdom and teaching him everything he knew about the universe, the meaning of friendship and how friends were the most important thing a person can have. His caring nature is shown even further, as seen with him requesting the other robots to manipulate Shiki into leaving the island knowing that their batteries wouldn't last long and they would deactivate soon, leaving him all alone on the planet.
Ziggy was built along with many other Robots for the Granbell Kingdom back when it had many visitors. After the park was abandoned a century ago, he and the rest of the robots were left to fend for themselves. About ten years before all the Granbell robots ceased to function , Ziggy discovered an orphaned boy named Shiki, whom he raised as his grandson. One day, while Ziggy, Shiki, and Michael were watching shooting stars, Ziggy told Shiki of the importance of finding friends and traveling the universe. Eventually, his body broke down and he ceased to function sometime afterward, leaving Shiki to be looked after by the Granbell robots. Before he ceased to function, however, he requested the other robots make Shiki leave them behind as he knew he would be all alone once their batteries died.