>>32718109"In Generation 2, shininess is determined by IVs - specifically, Speed/Defense/Special must be equal to 10, and Attack must be 2/3/6/7/10/11/14/15. (Note that IVs only go up to 15 in the Game Boy games). Pokebank attemps to take this into account, but gets the role of the Attack and Defense IVs exactly backwards. Meaning, Pokemon that would be shiny in GSC lose their shininess, and other pokemon will gain shininess."
