frozen oar
I think that it would be a fun and entretaing event, that could occur every 1-2h, or maybe a few times a day.
SPOILERS AHEAD FOR KIMETSU NO YAIBA SEASON 4
It could have a scene where every single player that goes to the raid reaches Ubuyashiki mansion, followed by a huge explosion and the appearance of muzan, then they all fall into the infinity castle.
It would be pretty cool and entretaining to see that, and a scene of the players falling like in the anime.
I hope this idea helps, the sneaks you guys are dropping lately look really good.