I’m playing DOOM 2 and my OCD is forcing me to get 100% kills, items, and secrets, but have run into a problem. I know there are bugs in several maps that make some items and secrets impossible to get, so I am wondering if this is one of them.
On level 20 (“Gotcha!”), there is a tower behind the player’s starting position which contains a ledge that has some items on it, but seems to be impossible to get to.
I checked numerous FAQs, guides, and walkthroughs but none of them mention this ledge. I even opened the level in an editor and found that it has no trigger ID associated with the sector, so it does not seem that it can be lowered, nor does it have a transport destination on it. I cannot figure out any way to get up there (I considered rocket-jumping, but that is not really possible in this instance, and I doubt that was the intent anyway).
Figure 1: The ledge in first-person—mode

Figure 2: The ledge in map-mode

Figure 3: The items on the ledge
