Games of this ilk are, without a doubt, the hardest for me to complete. Because I reach a point where it isn't fun anymore and I restart.
[Edited by Dhampy, 3/10/2013 11:56:02 AM]
No really it was so hard aiming and killing with the controller, took me about 2 weeks to complete
I thought Demon's Souls to be much harder than Dark Souls. Even after glitching my character to max level the game was a pain in the ass. However... all those games are a walk in the park compared to the g'old SNES day. Contra 3 cost me the first controller and Ghouls & Ghost probably the second one. At some point you just wanted to take out the game cartridge and torture it slowly to death before using it for point blank target practise at the shooting range.