Here's the thing: Technically, you can download the Knives Chau add-on pack for Scott Pilgrim vs The World, which adds the titular, ever-pining youngster to the game's cast of characters, along with a PvP arena, special dodgeball mode and drop-in, drop-out offline co-op, but it won't do you any good. At least right now it won't.
Those who've already downloaded the DLC are reporting that they can't access any of the new goods at all. At this point, accessing the DLC seems dependent on a title update. We've contacted both Microsoft and Ubisoft for clarification on the issue and will let you know what we find out.
Ubisoft Montreal and Ubisoft Chendu present a video game adaptation of Scott Pilgrim vs. The World, with music by Amanaguchi and pixelated graphics by Paul Robertson. Scott Pilgrim is out to win the hand of Ramona Flowers, but the entire world (or at least her six evil ex-boyfriends) stands in his way.