[9-26] E4M2: The Tower of Despair

You'll start in the first room. Look for a large red window. Shoot it to reveal a knife plate. Interact with this plate, and it'll lower the bars around the Super Shotgun in this same room. Grab that powerful weapon!

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

Activate this second knife plate. This will reopen the door you just came through, but more importantly, a hole will have opened up in the floor outside. This new opening leads to some Armor and a ledge back in the first room. Make sure to grab the armor before proceeding.

Now, you'll see a suspended platform ahead with an Ogre guarding it. There's a red emblem on the far side of this platform that, when activated, opens a passage. Getting to the platform itself is the challenge. You can either use a teleporter from elsewhere (if you've found one) or carefully navigate some narrow beams. If you're going the beam route and are positioned to jump onto the suspended platform, pause for a second. Instead of jumping forward, turn to your right. You'll find a beam leading to a secret area. Jump onto this beam to grab some health.

After you've dealt with the Ogre and potentially found that secret beam, proceed through the red window mentioned in step #4. You'll spot another knife plate. Turn right from there and shoot the wall in front of you. This will cause you to drop into yet another secret area.