Leviathan
Bracken Horror
LOLWUT???
no-one EVEN sugested sephiroth in ff7?
ten minutes only using pandora's box, white wind and cosmo memories.....
.......
Yes, normal Sephiroth is without a doubt the easiest boss ever (unless your level is really low and your reflexes are so poor that you can't even hit X when Omnislash comes up), assuming that your guidelines for a real boss are that low, but I believe what you're referring to is Bizarro and/or Safer Sephiroth. But when you really think about it, once you get Knights of the Round, every boss in FF7 - barring Ruby and Emerald, of course - becomes a cakewalk.