Pora Sewer is a large sewage plant sitting within Pora Plains that produces poisonous sewage into the river in Pora Plains, poisoning the plains and the residents in the Town of Pora. It is first seen in Power Master 1: A Strange Journey.
Power Master 1: A Strange Journey
First floor of Pora Sewer in Power Master 1: A Strange Journey
The first floor of Pora Sewer has three rooms: one with a switch behind a locked gate, one with a staircase going up, and another with a staircase going down. Poisoned Souls will continue to attack the player through out the dungeon.
The second floor has three rooms with a switch at the end.
The first basement floor appears to be where the poisoning takes place. The river flows in through the one side, becomes poisoned, and then gets send out the other. In order to reach the switch on the opposite side of the room, the player will have to walk through the poison, getting damaged in the process.
Once the player activates all the switches, Pora Sewer will start rumbling and falling apart. The player has 30 seconds to escape. Failure to escape will result in a Game Over.