A new round of enemies has emerged in the yard including seven arch-viles, eleven pain elementals, and two more cyberdemons. Take the west- and south-bound hallways to the room with triangular stairs, up the lift to the starting area, and return to the second floor of the yard via the cave. Kill this cyberdemon as well and take the key. Kill it and open the door to find another cyberdemon and the red keycard.

Follow the bricked-wall hallway north and turn east to a cyberdemon blocking the yellow card door. Take the key and go to the stairs in the north of the yard, open the hidden door marked by a slightly different texture next to the window, and pass through the room with two arch-viles and a mancubus. Go to the south-east corner and push the switch on the pillar, which will lower the yellow keycard and a megasphere along with the east and south walls, revealing four cyberdemons and 36 revenants. Instead take the narrow path in the south marked by two wooden posts, leading to the second floor of the yard that is occupied by 9 arachnotrons as well as a spider mastermind. From the BFG spot go south to a cave with two arachnotrons and two paths, of which one leads directly to the courtyard with a cyberdemon.

On your left is a BFG9000 with some ammo, and entering this room will cause the walls to rise, revealing 17 mancubi. Immediately ahead of the starting position is every weapon in the game, plus a fair amount of ammo. Sector numbers in boldface are secrets which count toward the end-of-level tally. Letters in italics refer to marked spots on the map. However, the player is presented with all the weapons and plenty of ammo for them, while 9 megaspheres can be found around the map.

Among them are 11 pain elementals, who will generate countless lost souls, and no fewer than 19 arch-viles who can resurrect previously killed monsters, meaning that the final enemy tally will likely exceed the starting amount. This frightening introduction refers to the unmatched quantity of tough monsters for an IWAD map: an army of 206 enemies, most of which are of the more powerful varieties (scoring a total of 138,820 hit points), will attack the player packed in large groups (including 13 cyberdemons, often appearing in groups of three or four).

Go 2 It is described in the preceding intermission screen as 'the hardest map we had ready for ya'.

Doom 2 revenant