could we have sub categorys for 2 3 and 4 player runs?

If someone does a speedrun of it

i did a duo run with my sis off camera i have a pic of the splits if that is enough proof

Do you have a video of it? It's proof that you've done it as well alongside with the splits. You'd also need to join the Discord server to interact with the moderators too since they could also decide on the category.