Various retailers are offering exclusive DLC for Hyrule Warriors. For example, pre-ordering the game from Best Buy will get you a download for a couple of Skyward Sword outfits that Link and Zelda can wear, while Amazon and GameStop are offering Twilight Princess and Ocarina of Time costumes respectively.
On September 26, the Hyrule Warriors launch date for the US, Nintendo is releasing free DLC that contains a new gaming mode, a weapon, and a new music feature allowing players to choose which song they want to hear. This DLC is available to anyone who purchases the game, as it’s not exclusive to a particular retailer. For those of you want who want to download all of the pre-order bonus costumes, those will become available for purchase at some point in the future.