crashes during stages too often. difficulty is gradual and not very steep. upgrading characters is easier than other games i have played, though ranking up is the toughest part of the process, because lack of brown books. veterans of similar games should be able to get around easily, despite the chinese. i cannot read chinese, but was able to learn most of what things do in about an hour of playing. hope the game stays the way it is once out of CBT. i really enjoy the game in its current form, aside from the brown book availability.