Green Town is a location from the Mega Man Battle Network series. It's a town in Cyber City that is dedicated to law and nature. All trials are decided by the Judgetree, which is a giant tree kept alive by cybernetics designed by Prosecutor Ito to fairly decide cases. The town itself is full of trees and plant life.
It's a two part area which includes a cafe and a giant tree. Under the giant tree is a secret tunnel which leads to Undernet Area Zero, the resting place of Bass.EXE.