The game's proper title was revealed on February 4, 2010, as "Sonic the Hedgehog 4: Episode I", along with the debut of in-game footage.
Саундтрек к "Sonic the Hedgehog 4: Episode I" был написан композитором Дзюном Сэноуэ, работавшим над музыкой серии начиная с "Sonic the Hedgehog 3".