Other than appearance, what is the difference between regular Pokemon and “shiny” Pokemon

pokemon-series

I am currently playing Pokemon LeafGreen (the GBA remake of Green).

Earlier today, I caught a "shiny" or "golden" Rattata. I tried looking up what these golden Pokemon actually do other than look different and the only thing I can find in regards to it is just the fact that they are rare.

So other than its appearance, are there any other noticeable difference?

Best Answer

Bulbapedia has an extensive article on it, but it boils down to, in Generation III and on, there is no difference in stats between normal Pokemon and shiny ones.

Generation II (Gold, Silver, and Crystal) is the exception because shininess is determined based on the stats of the Pokemon. Namely:

If a Pokémon's Speed, Defense, and Special IVs are 10, and its Attack IV is 2, 3, 6, 7, 10, 11, 14 or 15, it will be Shiny

But, from Generation III and onward, it is determined based on a secret ID and a trainer ID, so it has nothing at all to do with the stats and will be just like every other Pokemon.

Something fun to note is that if the Male/Female ratio is 7:1, in Generation II, you cannot have a female shiny Pokemon because of the way it is calculated.