The third and final era represented in Sonic Generations is the modern era, represented here by the Crisis City, Rooftop Run, and Planet Wisp levels, and since there hasn't been a particularly compelling rival character in years, here comes Perfect Chaos.
And thus the holy trinity is completed, with classic, Dreamcast, and modern all represented in what should be the ultimate piece of Sonic fan service in the history of the franchise. If this one doesn't please Sonic fans from all generations, Sega should just give up.
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