Weak
Let me get this straight. I can undestand the whole there being 3-4 really original animes out there, and with originality in movies and storyline rapidly drying out faster than you can say "Holy overdrived genre, Batman" it's not suprising. But you, an author who realizes this, should be actively striving to make your concept more original. I can't think of any suggestions, but I'm sure there are some more original ways to put a new spin on an old concept of the gunslinging hero one you are using.
Now, hold on a moment. So this will be an interactive game with its own website? It will have an involving storyline? It will be continuously updated with new levels and will be lots of fun? I'm sorry all I saw was some random (relatively poorly drawn, by the way) guy in a black flowing sort of trenchcoat and white pants who carries two large guns named Thanatos and Eros shooting and things. Then we see a bullet flying down a street, then we see a cheesy matrix effect rip off that doesn't really cut a 2 on a coolness scale going up to 10. Then more random shooting, then the guy gets shot and then his guns keep evaporating and reappearing, and then we learn that it is to be released later on and the site gunmage.com is displayed at the end. And I am supposed to understand this is a game how, just from the movie alone? I mean the only reason I understood this to be a game is because you said so in your rant review thing, but seriously some viewers don't care enough to read the stuff the authors of these movies write and so I'll bet a lot of them didn't get it. I mean you could have given us excerpts from the story, involve us more instead of having some guy fire guns in bizarre action poses to some cheesy japanese song that no one can understand. We need details, we need a reason to care about all of this, and I don't see a very good reason presented in this movie.
This thing is gonna be coming late into the fall, right? Try again, then. Maybe make another sort of trailer, release some details about the game, the story, the levels. Make us interested, because if the cheesy half-anime sort of drawing style doesn't kill the first trailer, the lack of any plot elements (or 'intellectual property' as you put it) will. Keep trying, use some of my advice and you'll have a 7 or an 8 right off the bat.