SEGA has warned fans who have purchased the Digital Deluxe version of Sonic Frontiers that they need to make sure that they have download the DLC before starting the game. If you start Sonic Frontiers and don’t download the DLC until after the tutorial section, then the company says that the DLC content will not be valid, which isn’t great for anyone who has purchased that version. However, the company says that future items, including the Sonic Adventure 2 shoes and Monster Hunter DLC, can be installed at any time. Sonic Frontiers is available now at retail and on the Nintendo eShop.
Important note ! That second point only applies to the Digital Deluxe DLC items. Future items, including the SA2 shoes and Monster Hunter DLC, can be installed at any time!
— Sonic the Hedgehog (@sonic_hedgehog) November 7, 2022