Hardest fight ever? Would have to be the battle with (ultro's friend) the sneezy guy in the FF6 colloseum. Let see, the weapon to bet would be the 'Striker', and the prize would say '?????'.
I couldnt resist that offer, could '?????' be the ultimate weapon in the game?
So a friend and I spent DAYS battling that damned thing. I mustve had Terra up to lv.99 with a genji glove, gauntlet, and the illumina+atma weapon, and he would keep fricken sneezing her away!
Then we finally beat it, but were very disappointed when the prize we got for betting the Striker was ..... a Striker.
also -- 4 Fire Shields + Merton = Ownage.