I actually own a region-free version of the game that is in English (most of the manual is in Chinese) The game is really fun and extremely hard (takes many tries to even get past the first level). Your character will usually dies in 1-4 hits depending on enemy and your character's skills and level. Overall the game takes a lot of devotion to beat but, that just makes it that much more satisfying when you do. Right?
Co-op and PVP
In online mode you can play cooperatively by summoning blue phantoms. Blue phantoms are other players with reduced health that will help you finish a level in order to gain their body back and collect some souls (which act as currency) along the way. PVP mode acts in a similar way but instead of having blue phantoms helping to regain their bodies you have a red phantom invading your game in order to kill you and regain it's body. you can become either type of phantom when you are in soul form and have the appropriate items.