switch, the pillar will lower, so get the Red Key.

After activating the initial switch, step on the teleporters to avoid being teleported away, then leave the room.

Head up the stairs in front of you, then down the staircase below.

Follow the hall until you see an opening to your right. Clear out any Imps, Hell Knights, and Lost Souls.

Enter the opening. Head straight and go up the staircase to your left.

At the top, open and go through the door to your left.

Kill any remaining enemies in this room.

Open the Red Door to your right and go through it.

Kill the Hell Knight across from you, then hit the switch at the other end of the room.

Leave this room and open the door across from you to re-enter the hall.

You will be in the room with rising and dropping lifts. Kill any remaining Imps.

Use your Automap to reach the southeast corner of this room.

Face forward from the southeast corner. You will see a pillar between two lifts.

Switch to your Automap and zoom in (X+L1). Facing the pillar without a lift, you should see lines forming a triangle in the back of the pillar. This is a hidden switch.

Wait for the lift to the right of this pillar to rise.

After the lift rises, wait a few seconds and drop down to the pit below.

Get in front of the pillar and press Circle to lower it, revealing a switch. Hit the switch.

Step back through the teleporter. The lift in front of you should be lowered.

Run and step through the lowered lift. When teleporting, back up until you fall to a floor below.

Turn right to a secret opening and go through it. This switch opens a secret opening for a few seconds. If it's there, go through it.

If the secret opening is not there, return to the room, lower the pillar, hit the switch, step back through the teleporter, and RUN to the teleporter very fast when it's lowered. Drop to the floor behind you and go through the secret opening to the right.

In this secret room, there is a teleporter and a switch. Do NOT go through the teleporter, or you will need to repeat the process of hitting the switch behind the pillar. Hit the switch to be transported to another secret level.