When you get an S rank in a mission, you unlock the EX mission for that one. Rank S points requeriment for 3rd Missions have been rised, I believe most of them in the original were 1,000,000 points, but I've seen one where you need 2,400,000 There are also some new parts, I got a Shuriken gumi from an EX mission (it's a weapon, and quite useful btw XD) Quote from GFAQs
Any way to do these EX missions? Otherwise, try trial and error. Good luck regardless!
I heard about some kind of EX mission to. And is it true that there is another crown earned from 100%? Or is that just a false rumor. And I mean one Sora wears by that.
Anyone have pics of all 10 of these?