This event was distributed to a few lucky residents of the United Kingdom and the Republic of Ireland,
distributed during an event that celebrates the launch of Pokemon Sun & Moon.
As the DVs (Gen I IVs) are distributed with 15 in every slot,
it is not possible to obtain this as a Shiny when transferred normally through Pokemon Transporter.
This PK1 file will not be compatible with JPN version of the game.
This is a video of @RupeeClock's collection of the hyper rare Mew!
(Also, it can be seen that the Event Staff's unit has a Restore Point function!)