The Mudhole (Japanese 泥穴) is an arena-like area located in a stormy swamp region. The area itself is located in a great hollow in the land, filled with mud, where dirt lovers can be found.
- Base Camp: The base camp is located in the border of the whole, with some dead trees surrounding it and mud streams flowing at one side.
- Area 1: The bottom of the hole, it's filled with mud of different tones, sometimes mud and rocks fall below.
- Small monsters: None
- Big monsters: Barroth, Congalala, Emerald Congalala, Blue Yian Kut-Ku, Iodrome, Baruragaru, Gogmazios, Murgoth, ???