Sonic the Hedgehog The Green Hill Zone

Green Hill Zone[a] (or simply Green Hill) is the first level of the platform game Sonic the Hedgehog, which released for the Sega Genesis in 1991. The level is grassy and lush, with environmental features such as palm trees, vertical loops and cliffs, and is the home of numerous forest animals. Like the game's other levels, Green Hill comprises 3 acts; in the third, Sonic fights antagonist Doctor Eggman before moving to the second level, Marble Zone. It was constructed by level designer Hirokazu Yasuhara with its musical theme by Masato Nakamura.

Green Hill Zone is considered to be a video game classic; the level and its music have also received positive opinions from critics. It has appeared in other games in the series, such as Sonic Adventure 2, Sonic Generations, Sonic Mania, and Sonic Forces. Critics have noted a Green Hill-like aesthetic in levels of other games.