Basically as the title says, could a seperate category be made for the expert map on its own? I know 100% already exists but from what I gather from the rules that also includes the first map as well as the six challenges. It seems like a major oversight to not give it its own category.

There's already a page for both of those DS: http://www.speedrun.com/Rhythm_Heaven Megamix: http://www.speedrun.com/rhm

There is a category called All Levels that ends on Remix 10 on other RH games, but it hasn't been set as a category for Fever yet