Dark Phazon
Smash Hero
Diddy failed at cloning himself and performing a sex change on his clone in time.Mewtwo got eaten by Kirby.
Ridley couldn't fit through the entrance.
So what happened to Toon Zelda/Sheik, Roy, Dr. Mario, Plusle and Minun and Dixie Kong?
As for Mewtwo, Sakurai wanted to cut back on clones so he cut Mewtwo because Mewtwo is a clone of Mew.
F_ck knowz what happened to the rest..im sure the next guy that post knowz.