SEGA has revealed via the German PR firm, PLAION, that they will continue to provide various pieces of downloadable content for free in the newly released Sonic Frontiers into 2023. The Monster Hunter-themed Sonic Frontiers cosmetic content is the latest free DLC for the game and is available as a download on the various console digital storefronts. We also had the Sonic Adventure 2-themed sneakers for Sonic via a promotional email sign-up form. The press release states that there will be several free downloadable content updates for Sonic Frontiers going forward.
Thanks to GreatSong1 for sending in the news tip!

Happy seeing that they will be adding additional promotional dlc, and it’s free. Wish more games had collaboration and/or promotional dlc like Sonic Frontiers.
Right?
So very happy to see Sonic Frontiers taking the lack of care in this game by showing new free content in the future unlike Sonic Forces.
Good games! I like it