Ninja Gaiden II, Hard and Master Ninja
I can handle difficult, I can even handle difficulty sometimes through no fault of my own (off screen death bringers for example). I can't handle difficulty that requires hours upon hours of farming essence to buy items to make it through a game.
Portal, Gold all challenges.
Fuck max steps and fuck max time.
FFXII
The only final fantasy that I've never obtained every single last thing there is to obtain, because it's so soul less. One day maybe.