User blog comment:Kana "Saki Kuro" Clark/Bosses/@comment-53539-20140421100147

I don't mind hard bosses because they are in the game for pros, otherwise you get complaints of bosses being too easy.

The issue I agreed with one video on youtube, was just bosses which are not particularly hard but have a lot of life. It feels like a pseudo difficulty, rather then a difficult boss. :-/