The VG Resource

If I were to upload the sprites from Undertale II (https://pep.itch.io/undertale-2) would it get accepted?

Undertale II is a RPG maker game with a surprisingly large amount of depth and content for a game that at first glace looks like a shitpost (it still is but its a really advance fun one)

so I'm not sure if the sprites for the game would get accepted or not

I think it would be accepted in PC/Computer, I've seen some meme games with sprite pages like Mario's Mystery Meat. If you do submit this game, make sure to add (Unofficial) to the end of the title, so there is no chance to confuse it as a legitimate sequel to Undertale.

Games like this may have been accepted in the past but for a while now, we have not allowed submissions from fan games.