U think you've got problems with a lv 68 Squall? what about everyones level 100?! fancy doing the whole of Ultimecia? if you level up, level up, bosses grow with you so it's just the same really, there's no difference. And if you're that obsessed, wait until disk three just before deciding to board Lunatic Pandora and go to Islands closest to Heaven and Hell, that should get you a lot of levels if you're that obsessed.