Zeromus
Blue Mage
Well in VII Tidus would get mistaken for Meg Ryan and get taken off as a lover for Don Corneo.
In FFVIII Kimahri will get laughed at because non-human talking creatures other than Moomba are very rare in that universe, and him being bright blue and with a gigantic horn (not only that, but it is broken), he'll get laughed at, he'll get all sorts of names. Also Rikku and Selphie will get involved in a slap war...
In FFIX Lulu will pick Vivi up, thinking he is a doll to use to cast magic. As a result Vivi will fry her... Meanwhile Kimahri and Freya will compete in jump wars / contests. Zidane will epic win over Tidus over kick-ass'ability and win Yuna's heart, but unable to get him (as he's preoccupied with Garnet) she becomes an evil villain set on destroying the world. Also Auron laughs at Steiner, but Steiner doesn't get the joke and gets really angry... Quina eats Wakka mistaking him for a red chicken monster, which Quina likes.
All of that was lame, but meh. It was an attempt!
What if Don Corneo was the principle villain of FF7, and there was no Sephiroth?
Then he would attack only female party members with perverted attacks, leaving the male party members to lay the smack down on his fat ass.

What if Kefka and Trance Kuja had a "who can cause more mindless destruction" contest?
