The Fiend Colony is an optional dungeon in Final Fantasy X-2 located on the Mi'ihen Highroad. The player must dispatch a level four or five chocobo to the highroad from Clasko's Chocobo Ranch during Chapter 5 to access it. Once it returns, Clasko will report a new dungeon has been found. The Vermin species are found in the passageways, these include: Creeper, Hug Bug, Hexapod, and the boss King VERMIN!.