Completely redesigned characters, a whole different slate of licensed music-- calling Elite Beat Agents a localization of Ouendan might actually be a stretch. It's closer to a pseudo-sequel. I find it fascinating the lengths to which Nintendo went and the misplaced confidence it must have had in EBA's future to dedicate such an evidently massive localization budget to a quirky rhythm game. They stopped just short of handing it to Beyonce.
Is there any game out there with a more extreme makeover for foreign shores?