Rogueport Sewers

The sewers below Rogueport. There is a hidden town here with a shop that sells rare items such as Ultra Shrooms and Gold Bars. There are pipes in the sewers which lead to every area in the game. Hidden in the sewers is a Teleportation Device that the X-Nauts used to transport to Earth and back to X-Naut HQ. Also located in the sewers is the Thousand-Year Door.