That's why I suggested Mewtwo be a costume. Since I'm redesigning all of the characters that weren't in Smash 64 into the Smash 64 art style, I figured that when I try to make Lucario match Gen II's aesthetic, I could increase the size of the tail to a halfway point between Mewtwo and Lucario.
After all, it'd be a far simpler solution than outright cloning Lucario. Most of the animations would be Lucario's, with a few changed to accommodate Mewtwo, since Lucario's animations would be 64ified anyways.
So it'd be more like Bowser Jr. and the Koopalings in Smash 4. Roy is nearly the size of Smash Bowser and Iggy is puny, but both had their sizes changed to match Junior.
Anyways, I've been making progress on 64ifying Ganondorf.
I'm using Captain Falcon's art as a reference for proportions. The rest of him is being amalgamated from Ganondorf's various appearances.
His face is based on OoT Ganondorf and Oracle Ganondorf, with the beard OoT Ganondorf grew in Wind Waker and Twilight Princess.
His shoulder pads/chest plate are a halfway between OoT and Twilight Princess. This is so that his cape animations don't look weird). The images of the Triforces of Wisdom and Courage are on his chest, since he already has the Triforce of Power in his left hand.
On the back of the cape, is going to be the image of Majora's Mask. I figure a plain sheet of red would be boring.
His gloves are going to be the ones he wore in OoT, with the gold plate on the back of his hand. His pants and shoes are based on the traditional poofy pants of the Gerudo, and the curled shoes that Oracle Ganondorf wears. I figure he should look like a desert warrior, since that it was he is. (I also hate how his Twilight Princess pants make him look like his knees are up on his thighs.)
Overall, his clothes will be black and red, with bits of gold and white.
I'm also going to include a design for a sword based on the trident Ganon uses in Four Swords.
I've also got some moveset input, for moves that could use the sword, But I'll save that until after I've posted the finished concept art.