Android 8

"What is Dr. Gero... doing?" The laboratory Krillin saw was filled with human corpses, machinery, and completed laboratory guards. Their upper bodies were human, while their lower bodies were tracks. It was incredibly bizarre. Yamcha frowned as well. Thinking of the laboratory guards Dr. Gero had turned into neither human nor ghost, they looked absolutely terrifying. "The fusion of humans and machinery—Androids," He-El said as he piloted the fighter jet.