Sonic, Shadow, and Metal Sonic..

A high-tech robotic duplicate of Sonic the Hedgehog, created by the evil scientist Dr. Eggman with one purpose: to destroy the blue hedgehog and prove his superiority. Constructed primarily of durable blue metal, it perfectly replicates Sonic's anatomy. It features blunt metal fins that mimic needles and triangular ears. Optical sensors feature menacing red irises and a completely black sclera. It has a yellow circular indentation with a black center, which parodies the peach-colored patch on the living Sonic's chest. Its muzzle, shoulders, and fingers are made of silver metal, and the backs of its hands are protected by yellow plates. Its red metal feet with white stripes are modeled after Sonic's iconic sneakers. Metal Sonic is programmed as a calculating, ruthless, and silent killer who communicates primarily through computer-generated sounds. It possesses advanced AI, which has caused it to develop a will and obsession of its own. He sincerely believes that he is the "real" Sonic, and that the living hedgehog is merely a pathetic imitation. Although he usually obeys Eggman, his pride and ambition have led him to betray the scientist on several occasions.

An anthropomorphic hedgehog with bright blue fur. The skin on his chest, muzzle, and inside his ears is a peach (or beige) tint. Six long, backward-pointing quills are located on his head, and two more quills are located on his back. Large, emerald-green eyes express confidence and a hint of cheekiness. His signature bright red sneakers with a white strap and a gold buckle are made of a super-durable, abrasion-resistant material. White gloves on his hands have been a constant detail of his image since the very first game. Sonic values ​​personal freedom above all else. He hates rules, restrictions, and stagnation, preferring to constantly be on the move and seek new adventures. He has a sharp tongue, loves to prank his enemies (especially Eggman), and demonstrates boundless self-confidence. Despite his outward carefree nature, Sonic is always ready to help anyone in trouble. He holds no grudges and is willing to give second chances even to former enemies. Sonic can't swim at all and is terrified of deep water, as he immediately sinks to the bottom like a stone.

His fur is completely black with bright scarlet stripes on his quills, arms, and legs. The quills on his head are curved upward, resembling tongues of flame. His chest is adorned with thick, fluffy white fur, which greatly distinguishes him from Sonic. He has expressive, stern eyes with ruby-red irises. He wears massive white gloves with black and red cuffs and gold rings on his wrists. On his feet are high-tech "floating" Air Shoes. A secretive, cold-blooded, and unsociable character, he rarely shows emotion and prefers to act alone. Unlike the impulsive Sonic, Shadow is always calculating, serious, and does everything to achieve his goals, even if the methods seem cruel. Despite his gloomy nature, he possesses an inner nobility. If he makes a promise, he will fulfill it at any cost.