

Behind it is a spiraling hallway leading to a BFG9000. After passing through the northeast trail of armor/health bonuses radiating from the central pillar in the courtyard, a door opens on the west side of the yard.The one in the southeast corner of the maze has a secret alcove containing a chaingun behind it. Inside the maze area are two blue-walled skull switches.Step into the northern corner of the triangle (the "non-illuminated" portion of it) to be teleported an otherwise unreachable ledge in the maze area. In the northwest corner of the courtyard is a triangular area of grass between a couple buildings (for easier identification, the area where you grab the yellow skull key).Be careful about it because if you fall into the slime river, you can't get back out.

There is a slime river near the beginning of this map, the river has several pillars marked "Poison" in it. In here, open the blue door ( K) and take the exit teleporter. Through the opening, and back into the starting room. Now go right, down into the floor below you, and RUN all the way straight to the opening across from you, before you get caught in a huge enemy mess.

You'll be teleported in the yellow door room. Hit it, and to the north of you a staircase has risen to a teleporter ( J). The blue key ( H) is scattered down here too. When you teleport into this room, kill the cacodemons in front of you. In here, take the teleporter ( G) before the cacodemons come and get you. Now go back and up the stairs (before the demons trap you), and up here, go all the way right, then left, and left again to the yellow door ( F). Facing the staircase, go through the opening ( D) to the left of it. When you get into the courtyard ( C), RUN all the way straight to the staircase across from you (don't climb it). Shoot them, collect all the shotgun ammo and the shotgun, and proceed through the archway ( B) into the courtyard. Behind the door is a trooper and some imps. To get out of the first room, you must shoot the door ( A) you can also use your fist or chainsaw to open it. Sector numbers in boldface are secrets which count toward the end-of-level tally. Erebus E3M6 Mt.Letters in italics refer to marked spots on the map. Full Game Leaderboard Category Extensions Level Leaderboard All E1M1 Hangar E1M2 Nuclear Plant E1M3 Toxin Refinery E1M3 Toxin Refinery (Secret Exit) E1M4 Command Control E1M5 Phobos Lab E1M6 Central Processing E1M7 Computer Station E1M8 Phobos Anomaly E1M9 Military Base E2M1 Deimos Anomaly E2M2 Containment Area E2M3 Refinery E2M4 Deimos Lab E2M5 Command Center E2M5 Command Center (Secret Exit) E2M6 Halls of the Damned E2M7 Spawning Vats E2M8 Tower of Babel E2M9 Fortress of Mystery E3M1 Hell Keep E3M2 Slough of Despair E3M3 Pandemonium E3M4 House of Pain E3M5 Unholy Cathedral E3M6 Mt.
