Notes:

I decided to go back and completely revamp my custom CSS for Smash Wii U. A lot of people didn't like how the Zelda characters still weren't all on the same row, and I changed my mind on how I wanted some other things organized – namely the standalone characters, which I have now placed according to their chronological release, aside from the 3rd party characters, though I've done the same with them separately.

Funny thing is that I never noticed until doing this is that this is something the official CSS already does, just in a disjointed way. (Take a look at it, you'll see what I mean.) Like my grouping, however, the 3rd party characters are an exception, though Ryu, being a DLC character, breaks this mold.