Quote Originally Posted by Spiritreaver1217 View Post
Nah, buffing up for the final fight in past FF titles usually means being leveled up enough. Bonus or extra dungeons/content have things that no doubt help, but they aren't necessary to win.

Take my fav FF title, FF6-i know for a fact i skipped a ton of side quests and the like(heck i didn't even get Realm back first time through) and i didn't have any issue on the last boss after i was high enough level.
Well you either level grind or get the bonus stuff.