Yeah, there's plenty to get to grips with in the Demon/Dark Souls games. The move sets for weapon types, how mobs behave etc. There isn't anything else that plays quite like them. Whether Bloodborne has the same variety or not we'll have to see. It looks like you have the same weapons all game, they just have different forms you can switch between? To be fair that may add more variety on it's own as people tend to stick with the weapons they're used to and swapping on the fly isn't always feasible. It looks like you're walking about with the equivalent of a bunch of weapons all the time in Bloodborne!