I have yet to play Dark Souls, but Demon's Souls allowed the use of a Blue stone to allow others to enter your world to help. Up to to 4 players I believe could enter your world.
Unless Dark Souls changed this, then Co-op is not new to this franchise ^^ Though if you want a test of true gaming skill, you must get it! People who rage quit, can't play games. You are beat by your own inept ability, not by game mechanics ^^
I laid down the Black stone to challenge people in PvP. Un-fucking-defeated ^^ Read my sig for more info
*puts on sunglasses and walks away like a boss*
It's not ego, It's fact
"Alpha, you ginger Adonis" - TheBlade