This goes out to the players old enough who were playing MK2 in the ARCADE when it first hit the scene...way back in those prehistoric days when having internet access in your house was considered new and rare
Out of the fake FAQs and rumors that were hitting the arcades I visited back when a new revision was released, these seemed to be the most popular:
Kano transformation - 2 different versions of this rumor. One was of course a Kano morph using Shang Tsung.
And the other was just morphing into Kano to do his fatality.
Never really anything big on Sonya, but one comes to mind - While playing on Khan's Arena, if you do Sonya's MK1 fatality movement right in front of where she is being chained up, your charcter did her Kiss of Death fatality.
People always claimed there traveled to "arcade xx" and that arcade's best player beat them so bad because he could morph into Goro.
Shang Tsung's "Ceiling Walk" move - making him un-hittable as he shot fireballs from above.
The armory stage had a stage fatality - the floor opens up and you could knock your opponent into a snake pit. Or pick up a background weapon and use it as a finishing move.
The Lui Kang looking guy on fire in the background of the Pit II was playable and/or fightable.
Baraka's Blade Spin move was always said to be put back into the game after a new revision.
Prolly one of the biggest going around - Animalites. Sub-Zero turns into and giant polar bear and smacks your head/torso off. We all know that rumor became some big, it actually became true. A game later.
And the one rumor that so many ppl claimed they saw - Nudealties.
Anymore you remember? Post away...