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A long time ago in the great era of the forums, there was a strong rumor that in pokemon Ruby, Sapphire and Emerald, there was something called "shiny shiny pokemon", they said it was a shiny pokemon of shinies, the probability of meeting a pokemon of a very different color from the usual shiny was 1 to a million, a person said that he found an orange Ratatta and the stars of shiny pokemon came out twice, the guy let it go because he thought it was an error like "Missingno " or something like that.
Another guy said that his Treecko was mustard yellow color, almost the color of Pikachu and when the pokeball came out, the Treecko it came out twice the stars of the shiny pokemon just like the other guy's Ratatta.