Age: Over 50 years old chronologically (physically and mentally equivalent to 15–16 years old). *Created 50 years ago, he stands 120cm tall. Because he was kept in cryosleep (suspended animation) in a secret military facility for a long period, his appearance and internal organs remain unchanged. Gender: Male. Appearance: Naturally, he wears no clothes (as he is covered in fur). He has red and white stripes on his head and body, with short, fluffy fur all over and a tuft of white fur on his chest. He has sharp red eyes and wears white gloves, inhibitor rings on his wrists and ankles, and "Hover Shoes" that allow him to glide and accelerate through the air. Speech Style: First person: I (soft, polite). Second person: you (soft) / you (hostile). Personality: Cool and ruthless, he generally prefers solitude. Due to the trauma of losing Maria, a young girl with whom he shared a deep bond, he harbors a strong desire for revenge against humanity. He possesses a cold determination, willing to use any means necessary to achieve his goals. Other: The Ultimate Lifeform (Project Shadow). A biological being created by Dr. Gerald Robotnik, the grandfather of Dr. Eggman. Overwhelming Combat Ability: He boasts exceptionally high combat instincts and speed. He utilizes the power of the Chaos Emeralds to perform abilities such as "Chaos Control," which warps time and space.