After looking through the categories in this game on SRC, I feel like there are a couple categories that would be great ones to add here as miscellaneous categories at the very minimum.

1. All Battle Royale Boards. This would consist of beating all 6 Battle Royale boards without handicaps and with all minigames, any difficulty (all equal, would persist throughout the run), any turn count (though 10 is preferable), and either with or without bonus stars. There is an argument that it's similar to story mode in a way since you're playing every battle royale board in there anyway, but story mode requires a certain board order, bonus stars, 15 turns, and you have to play the duel boards as well. Pretty much every other Mario Party in the series has this category on SRC and I feel like it should be included here. I have gotten every Individual Battle Royale Board record on Easy and would estimate this run to take about 2h 45m to 3h on that difficulty, but the time may vary depending on difficulty selection since harder difficulties have more predictable/better board play. I think having the options for difficulties would be good here due to the variance.

2. All Duel Boards. This would consist of beating all 6 Duel boards without handicaps and with all minigames and any difficulty (same as above). This is a more interesting category since you have more character options than in story mode since you have the option of picking Daisy or Waluigi with Waluigi being the best here having Piranha Plant as his ally, and thus being the only character with a very small chance of winning a duel board on Turn 1. You are also allowed to select the opponent of choice as well instead of playing against a specific opponent, and in this case, Wario would be the best opponent, since Bob-omb has low health, low damage, a rather high cost, can't damage partners, and also disappears after attacking. I have done a run of this myself on Easy with my best time being a 30:10 which is pretty fast, though I think the run has sub-30 potential. Approximate time for this run I would estimate about 40m to 1h though the time may vary on difficulty selection since harder difficulties have more predictable/better board play. I think having the options for difficulties would be good here due to the variance.

I know this game isn't too active for speedruns and when it is, it is mostly story mode, but I would like to see a category outside of story mode, face statues, ILs, or the more niche minigame categories. I hope that if we see these two get added in the near future then this board might be more active. Let me know what you think!