joint overlay?
so when you are grappling in the game and things get really cluttered and its hard to find that one joint thats blocked from sight, could there be an overlay feature like when you are facing your tori and uke is between you and the camera theres like an outline around you that shows through them, or they go slightly transparent where they are blocking LOS from the camera, maybe some kind of mesh overlay that shows a transparent view of your tori infront of the uke
or maybe some kind of [tab] feature that works with the joint tooltip thing where you can cycle through joints without having to find the joint manually