I've been wanting to download some Mega Man theme music to bring back some memories, but I can only find Torrents from which to download them. Even if there isn't a way to purchase the music, is it still illegal to download them for free?
It sure is. In fact, it is absolutely illegal to download almost any music for free off of any site (even though they sometimes tell you it's okay to download it). All you have to do is support the artist, and it is not illegal. That's it! You're already on the right track though, at least asking for a way to purchase the music. I would recommend buying an
OST.