I'm pretty sure there is no difficulty level higher than the 'top player' one. Something harder would be welcomed though, since it becomes repetitive and boring when u constantly win by a ridiculous amount of goals, especially in master league. When playing leagues i find the top player difficulty adequate, but when it comes to master league, after 2 or 3 seasons, things can get a bit easy if u try ur hardest to buy the best players. It seems as if the master league, at least when i play it, always ends up as a rapid transition from the worst club ever to a team that wins every title, year in, year out. In real life, even a brilliant team will struggle to conquer a league for more than a couple of seasons - just look at chelsea a couple of years ago. I don't know how it would be possible for konami to implement something that mimics the ups and downs of a real-life successful club, but it's an idea. btw sorry if i was straying off topic a little... and as for the world class difficulty.. i've never heard of its existence....