The original Kingdom Hearts game, which Final Mix is a reissue of, was first released in Japan.
Kingdom Hearts: Final Mix was released exclusively in Japan, featuring added story content, improved graphics, and gameplay enhancements.
Square Enix announces Kingdom Hearts HD 1.5 Remix, a collection including remastered versions of Kingdom Hearts Final Mix and other titles, expanding the accessibility of Final Mix content.
Kingdom Hearts HD 1.5 Remix, including a remastered Kingdom Hearts Final Mix, was released internationally on PlayStation 3, marking the first time the Final Mix version became widely available outside Japan.