In pokestar studios some creatures have special shinies and I'm wondering if they are dev exclusive or actually obtainable.
There are alternate colored sprites for several Pokéstar Studios opponents within the internal data, which are presumably Shiny sprites. However, it isn't possible to encounter the Shiny sprites in the final release.
Black 2 and White 2 Beta (Bulbapedia)
The Pokestar Studios present in the final versions will never use a different colour palette for any of the prop opponents. In addition, though it is possible to find the opponents as wild encounters via hacking, the game will either freeze while trying to bring up their nonexistent Pokedex entries or turn them into Bad Eggs once they leave the PC.
