>>32184542Red and Blue: Wild Muk (1% in Red) and wild Weezing (1% in Blue)
Gold and Silver: Wild Qwilfish (1% with Super Rod)
Ruby and Sapphire: Wild Chimecho (1% in Mt. Pyre)
Diamond and Pearl: I don't know. I haven't played any Sinnoh games.
Black and White: Wild Politoed and Milotic (5% while fishing in rippling water) (Also goes for Black 2 and White 2)
Black 2 and White 2: Wild Pinsir (0.25% in Black 2) and wild Heracross (0.25% in White 2) (Heracross and Pinsir are version exclusives but can be found in the opposite game through Hidden Grotto)
X and Y: Wild Huntail (5% with Super Rod in X) and wild Gorebyss (5% with Super Rod in Y)
Sun and Moon: Any SOS exclusive Pokémon while weather. (I would also say FUCKING Gengar, I tried to caught it and never appeared, at least in my game a Castform appeared twice)