Green Hill Zone (Earth-6515)

The Green Hill Zone, also known as simply Green Hill, is a recurring location in the Sonic the Hedgehog series. A natural paradise of N. Sanity Island, Green Hill Zone was the first location Sonic Hedgehog passed through after escaping from Doctor Neo Cortex in an attempt to free Wumpa Island from the tyranny of his evil creator. Ever since, Sonic has returned to Green Hill in multiple different times as he and his friends journey to foil the threats to the world.