Miscellaneous categories will be defined as anything that is possible to do on New Game ++ as it is the fastest to play on. And are different enough from the other categories.
For example the current two that I have added are No Nimpo% and All Test of Valors. Naturally the route is changed severely with doing the test of valors. And I found most of them you can rush to the ToV and finish it then come out with no enemies around.
As for No Nimpo you are forced to fight the metal dragon enemies without the help of the black hole or wind blade nimpo. For the quetzalcoatls you can't just simply two shot them with arrows and use black hole nimpo. Thus making some fights longer and requires more effort.
If anyone has any other ideas for categories then feel free to comment here.