I can't see Kos-Mos being a thing at all.
She's just REALLY random and extremely out of left field in this pack.
Joker, beloved and long running JRPG representative. Probably the most successful Persona game hero to date.
Hero, I mean....Dragon Quest is the size of Final Fantasy in JRPG history. Nuff said.
Banjo Kazooie, beloved fan requested and platformer star.
Terry Bogard, star of a cult in most parts, but iconic and game changing fighting series.
and.....Kos Mos? Robot girl who isn't really a WILDLY talked about contender for Smash, she's not from a game that's particularly game changing, etc, etc.
She sticks out like a sore thumb with these characters.