Quote Originally Posted by NeoCracker View Post
I'm going to Say Evil Wall in IV. Hardest Required Boss ever.
I have never had a problem with that particular boss in Final Fantasy IV; however, I can see how it can cause problems because it is considered an ambush and is based on a time limit of some kind. Did you try casting Slow on the Evil Wall?

As for the topic at hand, I have never had a significant problem with a boss presented as a part of the storyline in the Final Fantasy series.