The Sonic the Hedgehog Series is a popular video game franchise created by Sega in 1991. It features Sonic, a blue anthropomorphic hedgehog known for his incredible speed, as he battles against his arch-nemesis, Dr. Robotnik, also known as Dr. Eggman. The series includes various platforming games, spin-offs, and adaptations across multiple media, including cartoons and comics. Over the years, the franchise has expanded to include numerous sequels, merchandise, and even a feature film. The games typically involve collecting rings, defeating enemies, and navigating through colorful levels. The series has become a significant part of gaming culture and continues to attract fans worldwide.