I've had something happen a few times in the Scrabian Temple, there's one level where there's a scrab on one screen, another scrab on the next screen, and a wall between them. I would sometimes go down below the first scrab, then climb back up and just catch a glimpse of it walking through the wall to the other screen.
Then, when I went underneath the two and climbed up on the second screen, the first scrab would be stuck in the wall, the two scrabs would do their battle screams or whatever, then the second scrab would run over and kill the first one, getting itself stuck in the wall. Certainly made that path a lot easier!
