this man knocks on your door and hands you contract informing you that if you accept you will be the director for generation 8 on Nintendo switch, and you can make any changes you would like so long as the following things are in the game and all the items/ mechanics need to obtain them.
>all existing pokemon
>all existing types
>all existing mega evolutions
>all existing forms of pokemon, hat/cosplay pikachu is optional
>all existing Z-moves
thats it, anything else is up to you