Hakaider is a notable antagonist in the anime series "Jinzou Ningen Kikaider." As a formidable android, he is recognized by his menacing appearance, sporting a sleek black armor and a skull-like face. Hakaider is designed to destroy the protagonist, Kikaider, and is often depicted as a relentless and powerful adversary. His advanced combat abilities and tactical intelligence make him a significant threat. Despite being a villain, Hakaider's character is layered, occasionally showing a hint of depth that suggests a struggle with his programmed nature and purpose.