Just a reminder that providing specifics on, sharing links to, or naming websites where ROMs can be accessed is against the rules. If your post has any of this information it will be removed.
Ever thought it'd be cool to have your art, writing, or challenge runs featured on PokéCommunity? Click here for info - we'd love to spotlight your work!
Welcome to PokéCommunity! Register now and join one of the best fan communities on the 'net to talk Pokémon and more! We are not affiliated with The Pokémon Company or Nintendo.
The easiest way is likely to flip 'shiny switch' on before and right after that event.
That would 'make it shiny', and I recommend it for what you're up to.
There's a premade Essential map called 'Faraday Island' , it has a mew event that is shiny, check and replicate that.
Control Switch #31 is shiny, #32 is 'fateful encounter'