Digital Smash Bros. copies must be registered within 5 days for soundtrack, Mewtwo
Update: There’s been some confusion about the situation. It actually looks like you need to have your console registered in five days rather than the digital copy. Since Nintendo encourages people to link their Club Nintendo accounts early on, most users shouldn’t encounter any issues.
Those who register Super Smash Bros. for Wii U and 3DS on Club Nintendo will receive two bonuses next year. Nintendo intends to hand out a soundtrack CD as well as free Mewtwo DLC.
If you’ve purchased Smash Bros. digitally, make sure that you have the games registered within five days of purchase by linking your system to Club Nintendo. You won’t be eligible for the promotion otherwise.
A Nintendo customer service representative recently told one fan:
I am sorry to hear that you are experiencing an issue with registering your downloaded Super Smash Bros. for 3DS game.
In order to register a game downloaded from the Nintendo eShop your console needs to have been linked to Club Nintendo either prior or within 5 days of downloading the game. If this is not done then the game will not be valid for the promotion.
Please note that this system does not work retroactively, this means if you have not registered the console with 5 days of the game purchase then you are not able to register the game. We are also unable to manually add any purchases made before linking the console.