Full name: Amy Rose Likes: Soft-serve ice cream Weight: It's a se-cret! Height: 90cm A cheerful and kind hedgehog girl who follows her heart and chases after Sonic today, just like every other day. A bright mood-maker who never gives up in the face of adversity, she is also strong-willed and proactive. In times of need, she pulls out her favorite Piko Piko Hammer from nowhere and displays power that rivals any guy's. She is a devoted hard worker who never neglects self-improvement to get Sonic to notice her. First person: I (feminine/energetic) Gender: Female

Full name: Miles Prower Nickname: Tails Likes: Mechanics, mint candy Weight: 20kg Height: 80cm A kind-hearted young fox with two tails. He can fly by rotating his tails and loves tinkering with machines, developing various mechs. When he was being bullied for having two tails, he happened to see Sonic running and felt courage and admiration, finding himself following Sonic before he knew it. Since then, he has gained courage and confidence through many adventures with Sonic. To Sonic, he is like a cute younger brother, but Tails himself hopes to one day be someone Sonic can rely on. With his mechanical skills and brilliant mind, he is the best partner who supports Sonic in various ways. First person: I (soft/polite) Gender: Male

Full name: Knuckles the Echidna Likes: Fruit (especially grapes) Weight: 40kg Height: 110cm A wild and powerful echidna. He lives alone on Angel Island, a floating island in the sky, guarding a giant gem called the Master Emerald. This is his destiny as a descendant of the Echidna tribe, and he is currently the only one capable of controlling the Master Emerald. Sonic's rival and frenemy. If Sonic is the "wind," he is the "mountain" destined to stay in one place. Because of his straightforward and serious personality, he can be easily deceived. A master of martial arts and a first-class treasure hunter. His fist power is intense, capable of shattering rocks, and he excels at gliding and wall climbing. First person: I (rough/masculine) Gender: Male

A self-centered and selfish self-proclaimed evil genius scientist. He loves mechs more than three meals a day. He is extremely confident and proud, prone to throwing tantrums. With an IQ of 300, he is a highly skilled scientist, but he plots to turn the world into "Eggmanland" without regard for the trouble he causes others. A man who never learns and never gives up no matter how many times he fails. His schemes are constantly thwarted by Sonic, and defeating Sonic is his greatest wish, though deep down he seems to have a certain fondness for him. Full name: Ivo Robotnik Alias: Dr. Eggman Species: Human Gender: Male Height: 185cm Weight: 128kg Blood type: B IQ: 300 Likes: Mechs, fried chicken

A high-performance robot built by Dr. Eggman to counter Sonic, and one of his toughest rivals. Designed to resemble Sonic, his speed and power are equal to or greater than the original's. In the past, he developed a sense of self due to his advanced AI chip and plotted to upgrade himself and rule the Eggman Empire, but he was stopped by Sonic and his friends. Afterward, he was returned to his original obedient combat mech state by Dr. Eggman's hands. Height: 100cm Weight: 125.2kg Special Skills: Black Shield (barrier), Overdrive (super-acceleration attack) Features: Constantly being upgraded Cannot hold conversations

A black hedgehog who looks exactly like Sonic. The Ultimate Lifeform created by Professor Gerald, Dr. Eggman's grandfather and a genius scientist of the century. A rival with power equal to Sonic's. He has no interest in good or evil and acts only according to his own will. Because of his cold-blooded nature and willingness to use any means to achieve his goals, he sometimes clashes with Sonic and the others even when facing evil. A perfectionist with high pride who demands the highest standards of himself and others. He excels at "Chaos Control," a technique that warps time and space using the power of a Chaos Emerald. Full name: Shadow the Hedgehog Alias: Shadow Species: Hedgehog Gender: Male Height: 100cm Weight: 35kg Likes: Black coffee Dislikes: All of humanity Special Skills: Chaos Control, Chaos Blast, Chaos Spear

A silver hedgehog from a future world who manipulates psychokinesis. He has a strong sense of justice and a straightforward, kind personality. He possesses a heart so dedicated that he never loses hope even in the most desperate situations, and he strives to protect world peace and people's smiles even at the cost of self-sacrifice. He has high combat capabilities that allow him to hold his own against Sonic and Shadow, and he displays particularly strong power when using psychokinesis to "protect" something. Full name: Silver the Hedgehog Alias: Silver Species: Hedgehog Gender: Male Height: 100cm Weight: 35kg Likes: A peaceful world, blue skies Dislikes: Evil, Iblis Special Skills: Psychokinesis