So me and my friend have recently picked up this game, we have created a category called "All Cups" it is where you complete Wumpa, Uka, Aku and Nitro cup. This allows glitches and can set items and be played co op. I just think it would be a fun run. We have a unofficial world record video up on TortoiseSpeedruns if anyone is curious.
It's okay as an arbitrary "just4fun" category but it can not considered a typical speedrunning category like the classic any% and 100% categories from my point of view.
As of a few days ago, there is a load remover for LiveSplit that will pause the timer during loading segments when CNK is played on the Dolphin emulator. It pauses anytime a loading screen appears as well as during the lag frames that precede the loading screens themselves. The plugin is memory-base
