i have 2 things to say:

1. new categories shouldnt be created just for the purpose of being there, categories usually provide their own interesting twist that doesnt exist in any other category. the category youre suggesting is pretty much just all the regular categories with some stars you cant do.
2. this isnt directly for whoever made this post, but if any of the people that are interested in this want to, id recommend to check out pannenkoek's b button challenge video that covers all required b presses for both any% and 120 star plus some cool tech to skip some other ones.

hey quick note: you can clip through it, but the upstairs portion of the castle wont be loaded so it doesnt have much use