[9-26] E4M2: The Tower of Despair

You'll start in a room with a big red window. Your first objective is to shoot that red window. This will reveal a knife switch and also expose the Super Shotgun in the same room. Go ahead and activate the knife switch. This lowers the bars around the Super Shotgun, so grab it – you'll definitely want it.

After leaving that first room, take a right and head all the way to the end of the corridor. You'll see a wall there; shoot it to find a hidden room. Inside, you'll find the Ring of Shadows and another knife switch.

Activate this second knife switch. Now, shoot the door to open it back up. When you exit, you'll notice a hole has opened up in the floor outside. This hole leads down to a ledge in the first room where you found the Super Shotgun. There's some armor down there, so grab it and then make your way back up to the ledge in the first room.

Next, you'll encounter a suspended platform with an Ogre standing on it. In front of the Ogre is another red emblem that, when activated, opens up a passage. Getting to this platform is the tricky part. You can either teleport there from another spot, or you can try jumping across some narrow beams. If you decide to navigate the beams, and you're in a position to make a running jump onto the suspended platform, don't go straight for it! Instead, turn to your right. You'll find a beam you can jump onto that leads to a secret area. Grab the health pack there.

After you've dealt with the Ogre and the platform, go through the red window that opens up (the one near where the Ogre was). You'll see another knife switch. Turn right from there and shoot the wall. This will cause you to drop into yet another secret area.