Fighting Games. I was playing Injustice yesterday, because why not, and I went online and... I... it was so brutal. I couldn't even punch man... their combos just never ended! They just never ended! Shazam. Every time I saw him, I died a little inside. My pride kept telling me I wasn't bad, and they just played this every day, so if I get better I could take them. I was not correct. I would do okay against other people like me... then it would happen again.
RTS turtle players. You know, the ones that just sit in their base and build up defenses? I mean, you can beat them fairly easily, but it is like their one goal in life is to suck as much fun from you as possible. Hate people who do that.
Any horror game where I am stuck with a flashlight or other none fighting tooling. I love sneaking around, but... come on man! I have very poor fight or flight responses. I always die because when they scream at me my first thought, since it is a video game, is "Come at me brah! Come at me!" then they do... and it ends badly for me.
Games with few dialogue options. I know that if I tell this king to go shove it and burn in hell... I am probably going to die, but I want the option because he is not a nice man. I was playing a NWN 2 mod where this samurai Daimyo kept talking down to me. Calling me a foreigner who should not speak in his presence, yet expected me to go out and beat people up for him. I am a level 27 monk, I want an option to tell that pompous man to shove it cause I do what I want.
[member="Adenn Colston"] First time I beat Dragon Age, I didn't know about the ballistas. I killed him by hitting him over and over again in H2H. I went through so many potions, but my dwarf with his greataxe could not be denied!!!!!! My only regret was that they didn't have longer beards in the customization.
EDIT: Oh, and Demon Souls which I still consider to be far, far, far harder then Dark Souls.