Could there be a category for all the maps in one run? There could be sub-categories for each of the difficulties, doing all runs in that difficulty, as well as one for all of the runs. I'd imagine it has to be done in one sitting, but I'm not too sure how the time for the runs would work with loading times and possible ads.

let me guess, it might done to do this by just counting time on map and adding all the times together like bhop pro any% category.

I was thinking that, but it feels like there would have to be a lot of rules, otherwise it might be easy to cheat or sum.