I only own the 3DS version of this is game and I want to run it. I checked the DS version and it’s completely different. So I’m asking if you could add 3DS as one the consoles this game is on

I may not be a moderator of this game, although I'm following it, but I believe if you record a run on it then they probably will add it.

They verified then rejected my runs cause I submitted them as played on a Wii U but 3DS isn’t an option. Doesn’t SHiFT have the power to add 3DS and verify my run on 3DS?

Typically games with drastic version differences like that would have their own board. You're on the console board right now, and it seems DS is it's own version - https://www.speedrun.com/prrds

I don't think the 3DS version is the same as either of these, so maybe it just needs its own board. Go ahead and submit the game to the site, but they'll probably request you get in touch with a series mod to get it going.