MAP31: Cyberden (The Plutonia Experiment)

MAP31: Cyberden is the first secret map of Plutonia. It can be reached via MAP15, and uses the music track "Sign of Evil" from Doom.

Overview
Cyberden is MAP31 of The Plutonia Experiment and contains four Cyberdemons. The Cyberdemons are in cages; while they can be seen by the player, they cannot see the player. Four switches located around the map must be pressed to open the cages release the Cyberdemons. Each cage has a switch inside it and when all four are toggled, the yellow key in the center of the map becomes accessible and allows the player to exit.

Walkthrough
The normal exit to level 16 will be located at the top of the yellow card and will be released in the next release of this episode.

Secrets

 * 1) In the green marble wall at the south end of the level, climb the stairs and make your way left along the narrow corridor in the back of the room. Flip the skull switch here to open a room back on the lower floor. There's half of a lion-face on one of the walls in the new room; open it to reveal a teleporter to a secret area.

Records
The Compet-N records for the map are: