- For other subjects named "Emerald", see Emerald.
Emerald Town is the main setting in Sonic Battle and the hometown of Sonic and his friends. While Emerald Town has several buildings, only three different buildings can be used as "meeting points" in the game. These buildings would be Tails' House (which is simply a house in the shape of Tails' head), Tails' Lab, and a department-looking structure simply called "Building", which is only a meeting point during Rouge's episode. Other meeting points in Emerald Town are the two points at the Beach.
Sonic Battle begins in Emerald Town when Dr. Eggman throws the secret project Emerl the Gizoid in the beach after he created a duplicate of it that will obey his orders. Sonic finds the Gizoid and takes it to Tails' House to repair it. He is intruded by Shadow who has eyes for the Gizoid. Shadow fights Sonic only to be defeated by him. Shadow notified Sonic to insure he keeps the Gizoid safe from Dr. Eggman and runs off. Tails informs Sonic that there is a robot that looks just like it robbing a jewelry store. Sonic fights the robot and it retreats. Sonic soon names the Gizoid Emerl and he and his friends train it by attacking it and showing it moves throughout the game.
Due to the indirect nature of stages in Sonic Battle, other characters return to Emerald Town in their own episodes, typically to visit Sonic (who can usually be found training at Emerald Beach), or Tails' Lab for the reassembly of Chaos Emeralds from their shards. Rouge also comes to the district, like the E-121 Phi robots, to rob a jewelry store with Emerl's help.
Battle Highway is an apparently dangerous and square-shaped highway-like area with containers and walls that divide the arena into five sections: an area for each corner and a open space in the middle.
While most of the Battle Highway fights occur on the Central City World Map, a few confrontations in Sonic's Episode take place in the street outside of Tails' House. This includes the game's first battle featuring Sonic versus Shadow.
Colosseum is a black square-shaped arena with a pulsating green grid pattern and contains four red wire-frame platforms. The whole arena is a virtual reality training environment only available in Virtual Training at Tails' Lab. It is only through achieving enough victories in Virtual Training that Emerl can unlock his Ultimate-level techniques.
Emerald Beach is a square-shaped arena situated on the beach and Sonic's preferred training area; a sandy beach dominates most of the arena while water and grass appear on the opposite ends of the arena. Five gray stone blocks also (almost) circle the arena's center. Emerald Beach is also where Sonic and Tails take Emerl for some of their knock-out practice fights. Sonic the Hedgehog remains here for training in Emerl's Episode.
Tails' Lab is a square-shaped arena with a high-tech look and a block on both sides of the arena. It serves as Tails' private training area. It is as well the first place in Sonic Battle where Sonic and Emerl by the E-121 Phis sent built by Dr. Eggman.
- Emerald Town has similar palm trees and checkerboard rock faces identical to those seen in Green Hill Zone from Sonic the Hedgehog.
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