The point of this level, however, is to demonstrate a strange occurence that I've been able to create through a combination of glitches, inventiveness and a few strategically placed houses to hide what's happening behind the scenes.
And yes, I remember that I normally put glitchy level under my "Shadow" accout now, but the actual solution does not rely on glitches, only the magic does. I suppose you could make most of the mechanism invisible with some serious hex-editing, thus reducing the need for the houses... but here's what you can accomplish with just the normal level editor if you put your mind to it and wish for miracles to happen.
Exit with Stinky and let Loof push the boulder... then watch what happens!!
If you wish to deconstruct the magic, feel free to open up the level editor and see how it works. Even without the editor, though, if you pay attention, you might catch occasional glimpses of a certain creature that may or may not be partially responsible.
