If you're a Super Smash Bros. fan, check my YouTube Playlist out.
https://www.youtube.com/playlist?list=PL6Y9N-wSgnKqz51t5Ar9FedOlEjWw1nyl
Here's a different playlist about fan remixes that wouldn't sound out of place in Smash.
https://www.youtube.com/playlist?list=PL6Y9N-wSgnKq0giZe5bWmC_rj-yV9N_Pm
EDIT March 31: I've now made a "To-Do" list of remixes that I want to be extended.
https://www.youtube.com/playlist?list=PL6Y9N-wSgnKqyO74sdukCh99mNAy5DN5E
Yes I'm still updating it, so if you want a particular song to be added to these playlists, all you have to do is ask.