Ninja Squirtle is more original.
We wont give Yoshi a Ryu costume. Thats crazy. We will NOT reference games outside Nintendo (and Sega) in Project M, and we will NOT change the character's identity. How many times does this need to be said?
So no. You will not be getting Mega Pokemon. You will not be getting Pichu over Pikachu. You will not be Mr. Freeze over Olimar. I'm tired of the spammy ideas that I see all the time in here.
[/rant]
Oh, and Lucario is referring to the Black Belt trainer
http://cdn.bulbagarden.net/upload/8/81/XY_Black_Belt.png
Its just a coincidence that they look like Ryu.