Hm, I'm leaning more towards the strategy guides category. I know they're not helping you walk through the game but they don't really fall under swag or accessories, imo. When I think of accessories, I think of controllers and styli and case protectors. When I think of strategy guides, I think of guides and any sort of book product that helps you play the game. Codes and cheats can be found on online wiki/walkthroughs, so I can see code books being put with walkthrough books.