Great villain (spoilers)

[Norwee]

I think Iris is an really interesting character and it's hilarious how she's like the cute anime girl equivalent of Doctor Wily.
Her manipulations, cruelty and lack of regard for the life of others really comes through with the writing and makes her excel as an villain. You really want to see her be defeated. Also helps that her battle music is excellent and she has a great voice actor.
The character designs and writing, Iris in particular, is what i'd consider the highlight of this game.