It's not a radical overhaul of the game by any means - just a fairly standard difficulty hack (intended to be playable with the Exp. If not, no big deal I can still play it myself. I originally made it for my own enjoyment, but since it took me a fairly long time to complete, I thought it might be worth putting it somewhere public in case anyone else finds it interesting/useful.
Ultra Something is a ROM hack of Pokémon Ultra Sun and Pokémon Ultra Moon.