Final Fantasy X for PS2. Not only was it bad, it was hard as hell. And I HATE turn-based combat? Why do you HAVE to let the enemy hit you and just stand in place like a moron? It makes no sense!
I feel like you're trolling. That game was too easy, which is why the international version that wasn't released in America was harder. And if that's not true, then it should have been. The only hard fights in the American version was some of the optional stuff.
Does it count if you start the game on Hard and never beat it? Mine's Dead Space. I got halfway through it before it got so hard that it wasn't fun, just frustrating. Demon's Souls and Dark Souls also come to mind, although I didn't stop playing them because they're hard, I stopped because other people are holes--but, not you guys! You guys are totally awesome! ^~^; Heh heh...eh.