Sonic the Hedgehog 3 has been promoted through various official clips and featurettes, including "He Took Us All At Once" and "Double Your Villains". The film's cast, including Ben Schwartz, James Marsden, and Tika Sumpter, have participated in promotional activities, such as playing video games and responding to themed questions. The movie's writers have also shared insights into the film's inspirations and potential future developments.