As an incentive to have consumers buy Super Smash Bros 4 on 3DS and Wii U, Nintendo put two promotions in place for anyone who registered both versions on Club Nintendo. The first one was the giveaway of the very first piece of DLC for the game: Mewtwo. The character costs $5 to buy for both versions of the game (or $4 if you only want him on one or the other), but people who cashed in on the promotion get him for free, and a couple of weeks early, to boot.
The second promotion was a special CD set that features 72 tracks from the games’ soundtracks. This is the more elusive one, as Nintendo hasn’t announced any plans to actually sell this CD set to anyone who didn’t qualify for the free giveaway.
As such, I’ve uploaded the entirety of both discs for you to download at your leisure. They’re lazily tagged, but they’re good to go. It’s really excellent stuff if you’re at all into video game music.