The development team Sonic Team USA who made Sonic Adventure 2 resided in San Francisco, California. They enjoyed San Francisco's location and feel, that this inspired them alot to place some of the city features and landmarks from San Francisco into some of the levels of Sonic Adventure 2. This led Sonic Adventure 2 levels to have a more American feel unlike Sonic's previous games.
Green Hill zone was the first level from Sonic the Hedgehog on the Sega Genesis and is featured has a secret level in Sonic Adventure 2 fully rendered in 3D. Sonic Adventure 2 is the first Green Hill zone to be remade and rendered entirely with 3D graphics.
Connection to Other Media
Posters advertising another of Sega's titles, Phantasy Star Online, can be seen in the "City Escape" level.
Contributed By: darkknight109.
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