The film makers of the prior movies have mentioned playing both "Sonic Adventure 2" and the "Shadow The Hedgehog" solo game for inspiration. The film is also inspired by narrative elements from the Saturday morning animated television series "Sonic the Hedgehog" (1993 - 1994).
Following the release of Sonic the Hedgehog 2 (2022), Jim Carrey announced that he was considering retirement from acting. Producers Neal H. Moritz and Toby Ascher stated that Carrey's role as Dr. Robotnik would not be recast if he followed through with his plans, but remained hopeful that he would be willing to continue the role if the script was satisfactory to him. In February 2024, he was confirmed to reprise his role for this film, making it the first time Carrey has starred in more than two films as the same character.
Will feature the iconic main theme for Sonic Adventure 2, "Live and Learn."
The first film of the series to be release in IMAX worldwide.
Speed (1994), a movie that Shadow's voice actor Keanu Reeves had been referenced in the first film where it was playing on a tv screen, even as far as Reeves himself being mentioned.