I'm playing Fallout: New Vegas on my old Xbox 360 at the moment.
Was it the "Archimedes Trial" or "Challenge" part? That was goddamned tough to get through.
I think they actually 'patched' it, so you get a 'sliver' of extra health or something after a lot of people couldn't get passed it.
They patched that part finally? I beat the game a while back and with all of the God of War games, there was one part I almost didn't beat but I ended up getting through it. Pretty sure that was the part that gave me trouble in the game.
I'm playing Saints Row: The Third, I was finally able to get some DLC content because other than that I'm 97% complete with the game. I only have 5 challenges to complete on my main characters game.