Excellent animation and an interesting story combine in this action sci-fi success. The voice work is sometimes clunky, and the characters are all dull as dishwater. In fact, I can't really tell you about the characters, they are all fairly similar. This results in visually stunning action sequences. But it's hard to feel involved and connect with the characters emotionally. Chases, robot fights, fast and well edited cuts, this is how action scenes should be seen. As a combination of both robot/zombie film, it would have been better for some not so obvious mad scientists. Enjoy the action, and try and make it through the dialogue.