shiny check on shaymin and mew???

[95girl]

hello,someone said that mew from emerald can't be shiny and all 31; and that shaymin cannot be shiny because of shiny prevention in the game.is this true?

EDIT never mind i wronged to read something.my mistake sorry

[Dreamer]

Both can be shiny and flawless(shaymin only in flower paradise or how it's called)