Hey DraArk,
Unfortunately, I don't play any of those right now. I'm going to start Flyff at some point soon, though. When I do, I'll let you know.
By the way, could you spell out for me what the first two games you mentioned are. I can't figure out dRO and I keep thinking of GoonZu when I read Gunz. I'm pretty certain that's not right.
Peace,
manaman