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If you are trying to play via Yuzu or Ryujinx, Sonic Frontiers requires specific firmware and title keys that are difficult to configure correctly without a modded Switch. The Best Way to Play sonic frontiers switch rom download
To keep the game running, Sega reduced the "draw distance," leading to noticeable "pop-in" where platforms or trees suddenly appear as you run toward them. Searching for a "Sonic Frontiers Switch ROM download"