Final Doom/MAP07: Prison

Starting room


Head down the corridor and into the room to the south. Climb the stairs on the north side of the room, to start lowering the monster platforms, and exit by the teleporter behind them.

The red key
To reach the exit, you will first need the red key. It is located in the central building, and there are two ways to reach it:
 * You can take the teleporter on the far left and fight your way through the corridor of monsters and flip the switch to raise a bridge.
 * You can dive into the pit with the damaging floor and enter either teleporter on the right-hand side. Entering this teleporter from the left leads to the red key door, and entering from the north or south leads back to the edge surrounding the pit.

Once you are on the central area, head to the southern column and flip the switch on the southern side to lower a teleport to enter the center building, which is bordered by caged imps and kell knights. To escape, you first need to head to the north-east corner and flip the switch there, and repeat for two other corners that get lit. The fourth corner contains the red key and a teleport outside to the red key gate.

Reaching the exit
Open the door infront of you. The exit is located on the northern wall, and requires you to walk across a few pillars.

First, head to the south-west area of the room, and flip the switch in the damaging floor below. Return to the upper floor either by the teleporter or by using the lift.

The teleporter is available on the southern part of the exit chamber. Walk it and you are teleported to the north-east corner, where you can walk to the exit.

Secrets

 * 1) In the starting room, the floor blocking access to the teleporter will lower.  To the right of the teleporter is a wall that can be opened to reveal a switch.  Flip the switch to open a closet to the left, which contains a berserk.
 * 2) When you lower the lift for the central teleporter, quickly run to the other side of the column to see a hidden lift.  The lift itself is a secret when you step on it; it leads to invulnerability.
 * 3) If you choose to take the long corridor to the west, you'll end up at a control room and see a soulsphere that is just too high.  Exit to the battlements and walk along until you see the soul sphere lower; walk on the platform containg the sphere to claim the secret.
 * 4) When you reach the exit, you'll notice that the central pillar to the south looks scarred.  Use the northern side of the pillar to open the east room and enter that room.  It contains some monsters and a supercharge.