Plot hole: The KoF97 story mode starts with a double flub; Serina announces that the opening matchups for KoF96 have been announced (wrong year), and in the background there are big screens showing, amongst the other characters, also Ash Crimson, a character that won't enter the saga until 2003.
Plot hole: In the prologue of King of Fighters 95, Iori Yagami acts surprised by the presence of Kyo Kusanagi and vows to participate to the tournament, in fact the rest of the intro is about how he gets roped into the tournament by surprise thanks to Geese's manipulations. But as he delivers those first lines, behind him there's a giant poster supposedly celebrating the past edition, with Iori himself - who was not even in tournament - fighting against Kyo.