hard? i have just some bosses i been thought irritating and some using some cheat ways... like first time you meet ultros after a little time he does tentacle at banon and he dies directly... the first kefka was extremly hard (haven't meet so many real boss fightes with kefka) just because you where weakened so much after playing an remixed version of space invaders with an army (wich was awesome). but some bosses really was difficult and took me some time to kill. ultros and the opera house was just so damn cheaty... changing me to imp and confuses me all the time.
i am wondering... Terra is the main character but they don't show so many scenes with her or dialogues.