Apotos

Apotos is a city-state of the United Federation and located on Southern Eurish (StH: #268)

Shattered World Crisis
Metal Sonic was send here investigating about Gaia Temples. He was threatening an old man, when Dr. Eggman called him, sending him the coordinate of Casino Park. The old man said after the derpature of Metal Sonic that had to « break the tradition » and « warn the others » (StH: #268)

Background Information

 * Apotos is from the video game Sonic Unleashed, where it's with Empire City one the only two locations without a Gaia Temple.