If you buy and register both Super Smash Bros. for Nintendo 3DS and Wii U on Club Nintendo in the U.S. or Europe, you’ll receive a Super Smash Bros. Nintendo 3DS & Wii U: Premium Sound Collection soundtrack CD.
As the name suggests, this CD contains music taken from and inspired by the games. More details, Nintendo said, will be announced at a later date.
Super Smash Bros. for 3DS will be available on October 3rd. Wii U will get the game later this Holiday season.