MAP20: The Death Domain (The Plutonia Experiment)

MAP20: The Death Domain is the twentieth map of The Plutonia Experiment. It uses the music track "Message For The Arch-Vile" from Doom II (the same as Doom II's MAP20: Gotcha!).

Official

 * 1) Once you reach the switch-activated lift in the "sewer" area, rather than riding it up, walk through it to the other side. Here, along with a security armor and rocket launcher, there is a Baron-faced wall. Press the use key on it as you would a door or switch. Although you won't be able to hear anything, it opens the locked door near the stairway you lowered to enter the sewer area. Behind it is a pathway leading to an ammo cache and a combat armor vest.
 * 2) In the "library" area in the north is a wall with two red flags on it. To open it, press the use key on the lights to either side of it. Behind it is a lift to a soul sphere.

Non-official

 * 1) As soon as you enter the room with the floating eye surrounded by a green symbol, turn to your left and you will see a narrow door. Shoot it to open a small room containing a megasphere.
 * 2) In that same room there will be a hallway with a Medikit at the end. As soon as you get to the end of the hallway, run back and make a right. A platform will have lowered revealing a hallway with a backpack along with several rockets and clips.

Trivia
In the PlayStation port of Final Doom, this map appears, interestingly, before the final stage MAP10: Onslaught (which appears ten maps earlier in the PC port).

Records
The Compet-N records for the map are: