Hardest boss I've ever faced would have to be the final boss of Final Fantasy II, The Emporer, without the blood sword. his spells are manageable, but dear god no matter what armor you have his physical attack WILL WRECK YOU. Massive Damage and massive healing in one attack, not to mention that even with spells boosting your damage you still can barely scratch him in the first place.
Also Final Fantasy IV on ds. The entire game(except the beginning) is nightmarishly Difficult, to this day i still can't beat a red dragon. Ironically, The final boss is easy
Also Final Fantasy IV on ds. The entire game(except the beginning) is nightmarishly Difficult, to this day i still can't beat a red dragon. Ironically, The final boss is easy