Kay then…It's missingno, the glitch pokemon.All for one: It has many versions in each game (IE Bad Egg, ? and ?????? in R/S)One for all: There's at least one version of it in each game.Ratata: In R/B, it had the cry of a ratata.Egg: Bad Egg was introduced in G/S/CNone:In R/S, the two main glitch pokemon have no cry.Blbasaur: In D/P, when you encounter it, it has the cry of a bulbasaur.Multiple versions was explained above.Hall of fame: In R/B, if you catch it, is supposedly messes up your Hall of Fame.