Yeah but you felt like you really accomplished something when you beat a tough NES game .Definitely Ninja Gaiden NES.
The last area is absolute horseshit due to the fact that unlike the entire rest of the game, it puts you back to the very first stage of that area instead of the stage you are on.
It's literally the most difficult part of the game with all the most annoying enemies like cats and hawks and shit and hard as fuck bosses.
I had to turn the volume down to finish it. The music was wrecking my psyche. Without the ever increasing tempo, I was able to feel less pressure, regardless of how much time I had left.Probably The Witness. The final challenge took me like eight hours of constant playing to finally do and it's not like you can use a guide either.
I've played a lot of MegaMan in my time. MM9 is certainly not easy. In fact, it was meant to be hard. I find it much harder than any of the classics. MM1 is unnecessarily hard due to the slower pace, but I still think 9 is harder.Probably mega man 9.
Please don't laugh at me if it's actually easy or whatever but it was my first megaman game and it was an absolute bastard.
Absolutely amazing game though
Hacks aside, probably Mario the Lost Levels. Or if i finished something else more difficult it didn't really leave a permanent scar on my younger self's psyche.
Drake's Fortune on Crushing mode. I don't even know how i managed it