Whether a Pokémon is Shiny is also determined by IVs, though in a much more specific manner than its gender is. A Shiny Pokémon, in Generation II only, must have IVs of 10 in Defense, Speed, and Special, as well as an IV of 2, 3, 6, 7, 10, 11, 14, or 15 in Attack. Such a lineup only has a 1/8192 chance of occurring, the standard rarity of a Shiny Pokémon to this day.
- 10 IVs / DVs in Def, Special, Spd
- 2, 3, 6, 7, 10, 11, 14, or 15 in Atk
Shiny Pokemon in Gen 2 therefore, must have DVs in every stat besides HP. HP is random.