Fiend Colony

The Fiend Colony is an optional dungeon in Final Fantasy X-2. It is located in the Mi'ihen Highroad. You must dispatch a Level 5 Chocobo to the highroad during chapter 5 to access it. Once it returns, Clasko will report a new dungeon being found.

To travel through this dungeon, you will need destroy stone walls with bombs. Near the entrance, you find some S-Bombs, and fighting random battles will get you more. Some walls are stronger than others, requiring you to use M-Bombs or even L-Bombs. There are fake walls, however, and if you try to destroy one of them, you will have to fight an Epitaph.

Once you reach the back of the cave, you will have to fight King Vermin!. After he is defeated, you are automatically taken to the entrance to the colony, and all the walls are reset. You also recieve the Font of Power Garment Grid.