I've been practicing a category of all Boss Run. This can be a fun category for players. Here is what I believe the rule(s) are:

-NG+ Only in order to defeat both regular and secret bosses. -Timer ends on defeating the final boss on Destiny Island -Timer is needed since this run could be at least 1 hour or so depending on the difficulty. -Run can be on either lvl 99 or lvl 50

Having a video of the run helps category requests. I’d recommend doing a run of the category and sharing the video here to boost your case.