run around the room hitting the controls or whatever they are kinda all on the wall of the room hit one run to next hit it and go in a big O as u keep away from her magic attacks thats how i did it was an easy battle but when u get hit or when i did i took alot of dmg so be sure to keep moveing
talk to Iris give her gift love tomato juice or flowers juice loved flowers liked to build up his fp/lp to 4 After that, if you go see her with some hp damage a scene should appear and this will change the way you fight this boss
never done this myself seen it in another topic forget what one
"So if you befriend Iris Blanche, Iris Noire will help you with the snow ruins boss?"
No. If you befriend Blanche to a high enough level, you won't have to fight Noire. You still have to fight the Snow Ruins boss (well, I guess you don't have to, it's pretty optional) who is NOT Iris Noire but another creature located at the bottom of the Snow Ruins.