|Green Hill Zone|
|Greater Location||South Island
|First Appearance||Sonic the Hedgehog|
|Latest Appearance||Sonic Time|
|Location Type||Green Hill|
|Green Hill Zone does exist, and it can be found in real encyclopedias. You may read more about it here:|
Green Hill Zone is a major location in the Sonic series.
In Gradient Hue, Green Hill Zone is a tier 1 world. In this world, Gradient explores but is soon surrounded by Egg Pawns. After defeating them, Sonic the Hedgehog shows up and brings Gradient to Station Square. Gradient is able to recruit any two of these people for this world:
After getting into Eggman's base and defeating him and his Shadow Motobug, a wormhole opens back up into the Battle Frontier, and Sonic releases a Halfcharm. Gradient decides to put this together with another Halfcharm to open more wormholes.
Mecha Green Hill Zone
In Sonic Heroes 2, part of Green Hill Zone has been roboticized; this is due to the trail of destruction caused by the new (then) Dr. Kintobor as he moved out of his underground laboratory. This roboticization has never been fully fixed, but to this day offers access to the old laboratory which, in numerous storylines, contains powerups (Team Sonic's storyline contains four pairs of "Light Shoes" which enable travel across paths of rings, for example).