Can anyone explain the setup for the wall clip when exiting the castle after killing Death and getting the eyeball? I can't seem to get it to work on my own. It looks like there's manipulation of the camera so that Simon is able to get very close to the top of the screen and then some jump mashing, but I can't figure out how to do it properly just watching runs and I haven't run into an explanation yet.

For reference, this occurs at about 19:50 of xenkaroshi's 5th place any% run on the leaderboard (about 19:40 run time).

You have to jump to stop the camera from scrolling up which is why you will see us jump towards that spot after we climb up the stairs.