The Mandela effect got it's name from the fact that a lot of people remember Nelson Mandela dying while locked up in prison in the 1980's. It's not just remembering things "wrong". It's the fact that lots of people also remember them wrong. Another good example is the "Fruit of the Loom" Mandela effect. A lot of people remember the cornucopia in the label, but there's no historical record of it. There are things, however, that reference the original work without being explicitly linked to it like the Frank Wess, 'Flute of the Loom' album cover.
OT: There's an old EGM add that shows a scene in Rushing Beat for the SFC where the background is exploding in flames, but that scene isn't anywhere in the game. I've had other experiences with games and ME, but I can't remember them at the moment.