Is there a single kingdom category for Koopa free running?

nope, it would be cool tho if you dont find it is probably because doesnt exist lol

Pretty sure there's a leaderboards built in the game for Koopa Freerunning. Same goes for the RC Race

imo it would be cool but the mods will probably say no because "there is a in game leaderboard" but the in game leaderboards are filled with hackers

This is just world records but here https://mkwrs.com/smo/

ye but thats a completely different site

but i think the mods aren't dumb they would know if there game was modded