Quote Originally Posted by Zevox View Post
Best guess for why she even gets her own page would be because she is a different person from Marth, which none of the other alternate costumes so far have been - including having her own voice actress, for example.
Male/Female Wii Fit Trainers and Male/Female Robin have different VAs, so it's not for the voice alone. It probably is because she is named as a different person altogether, rather than being just a female counterpart like WFT, Robin, and Villager alts are.