In ff vii you find out that monsters are the result of mutation from mako energy. In ix they are created by the mist and on number x they are those who have not taken the path unto the farplane. Why couldnt square have the same reason monsters exist throughout all the games rather than different reasons for each one? I mean the monster bomb that attacks you appears in all games, looking exactly the same but they all have a different reason for being that monster. wouldnt they look a little different for different reasons?
i know im just being stupid, but it has plauged my mind for a while.