ILs were neglected at first in the old game which allowed cyberscore to foster a community of secrecy which no proof standards, whilst the new mods have a clear positive intentions with ILs on the port I will make this post to brainstorm suggestions to help them out, as well as measures to mass-verify the IL submissions so that we do not overwhelm the mods.

Also it is important we lay out the clear IL categories ahead of time so I propose Any%, Itemless% and 3 Stars/100% ILs. Any suggestions please reply below :D

If it's possible I think it would be good to add also the Singleplayer% and Multiplayer%(for example if a level is faster in multiplayer you can choose between this 2 categories)and a subcategory to Any% :Mario/Luigi/Toad/Peach/Rosalina/(future charater)%

Sounds a bit convoluted but I am sure if category extensions become a thing we could see multiplayer Captain Toad ILs. Any other IL isn’t really affected my number of players except for maybe the Lettered Enemy Encounter Levels

To be honest Multiplayer ILs dont really seem to feasible for a leaderboard, there isn't any purpose in having 2 players.

Maybe is not useful throughout all the game but I'm pretty sure that there can be some levels which multiplayer optimizes the time

It would hardly be viable anywhere, yes. I think the sublevels would be a good example of multiplayer optimization.

Actually I think multiplayer IL's may not be good for the base any% IL category but for ones with collectibles there could be some very creative strats using two or more players.

From what we have seen though Yandema, online multiplayer is constricted to the same ridiculous screen just like local multiplayer, if this is the case then multiplayer will play no extra significance to the game compared to the original, the only use it would have as Ezra eluded to is Captain Toad and Sub-Levels. If it indeed turns out that people can go on different screens (The Ideal Scenario) then yes the 100% IL tab should be able to be split into 1,2 and 4 players however, unless it makes a difference on every level, it won't be ran on every level and hence may end up as clutter