MAP28: The Sewers (The Plutonia Experiment)

MAP28: The Sewers is the twenty-eighth map of Plutonia. It uses the music track "The Demons from Adrian's Pen" from Doom. The structure of the level is indeed reminscent to undergroung sewer lines with damaging "sewage" seeping every which way. It is notable for being a rather large stage with a lot of strong enemies to fight.

Secrets

 * 1) From the start of the level, go through the opening to the left and continue westward, down a spiral staircase encircling a brown slime-filled room. Near the bottom of the stairway is a wall with scratches on it. It's a fake wall, so walk straight through and follow the pathway up to some goodies.
 * 2) At the center of the level is a huge "+"-shaped tunnel with brown slime on the floor. At the end of the northern arm of this tunnel is a small bank of computers on the wall. Shoot it to open an alcove with a soul sphere in it on the opposite wall.
 * 3) Just southeast of the "+"-shaped slime tunnel is a room with a square, raised nukage pool with square brown platforms in it. Run from one of these platforms onto the brown "fence" containing the nukage. Follow it along to the west and drop into the small pool of nukage against the wall. The green wall bordering this small pool is fake, and you can walk through it for another secret.
 * 4) Make your way to the library area just southwest of the "+"-shaped slime tunnel. There is a broad bookcase at the south end of the largest of the library rooms; open it to reveal some goodies.

Bugs

 * There are actually two Computer maps in this map, which makes it impossible to gain 100% of the items, since the player can only pick one map per level. However, some source ports allow 2 to be picked up as a way to achieve the status.

Records
The Compet-N records for the map are: