I'm completely lost...mainly cuz I've never played the game...though I'd like to... Either way, those pics look really kicka**!
It follows most of the trilogy's storyline, but it ends in a different way. At some point it deviates completely from the main plot and has its own little 'story' that follows.
The movie is done completely in pre-rendered graphics, something the games didn't do. And like I said before, the game follows most of the story from the game's trilogy (which is why you may see similar scenes, but all are redone in pre-rendered graphics), but branches off at some point.
And then Haseo unleashes a Senbonzakura/Gate of Babylon of pain on his enemies. I look forward to updates for this movie.