Multiplayer speedruns are always interesting, plus its more fun as a runner. maybe as a misc.?
The only problem is that to practice you need two runners who are close in skill level that can get together in person often enough to route and practice it.
Yes, but 3DW on switch is a seperate leaderboard, because it seems to be using a different engine.
Multiplayer runs never took off for the Wii U because local multiplayer runs are difficult to get runners together for. There's active discussions about what will happen with the port because online multiplayer changes that dynamic.
I'm sure though that if multiplayer Wii U runs started cropping up, room would be made, but they first have to show up.
Well, there wasn't a need for it, and putting in right now isn't the smartest idea because of covid. Introducing a category which requires people to meet up just isn't the safest thing atm