Shang Tsung Ceiling Walk -- MK2 rev 1.1

This is something that I've heard about for quite a long time, but I've never seen a video or an explanation of what it is. Supposedly in MK2 1.1 Shang Tsung could walk on the ceiling due to a glitch.

All I've been able to gather is this: "Shang Tsung on the ceiling happened on old revisions as a result of doing his friendship on the Kombat Tomb stage."

So.... does anyone know if this is just one of those persistent MK legends (like Ermac in MK1) or if it actually happens in certain...

Shang Tsung Ceiling Walk -- MK2 rev 1.1