From the review:
"The primary reason this works so well is Demon's Souls' superlative combat. Most RPGs have battle menus or flashy combat systems to separate the player somewhat from the action. Demon's Souls does not. You equip weapons, shields, wands or talismans in either hand, and use the shoulder buttons to either attack or defend with each hand. This simple system opens up into a complex dance of dodges, parries and ripostes, desperate last-second slashes and fatal impalements. It connects you with your character in a way few RPGs have done before."