No, I'm talking about Final Smash ideas. Like, if Ganon got a new (or another) Final Smash where you played as Ganon after Ganondorf transformed into Ganon. It would work like how Bowser turns into Ganondorf. As for Mewtwo, just make him go God mode for his Final Smash. Although, truth be told, I wish you could still damage fighters while they're in their Final Smash, assuming they transform (including these fighters and Giga Bowser).
But in regard to what I was saying, I mean like, what if in the story mode you fought Ganon, and then, later on, you fought a boss as Ganon. How awesome would that be=??? No really, it'd be like "I just poopied my pants and I don't give a crap" status awesome.