Route 22: 17 species in 1 game

Road 22: 17 species across 2 versions

X and Y

X and Y: 17 species
Species	Method	Levels	Chance	Game page
Psyduck	Surfing	25 to 27	95%	All places
Psyduck	Walking in tall grass or a cave	6	10%	All places
Psyduck	Walking in yellow flowers	25 to 26	20%	All places
Farfetch’d	Walking in tall grass or a cave	7	10%	All places
Farfetch’d	Walking in yellow flowers	26	10%	All places
Goldeen	Fishing with a good rod	25	65%	All places
Seaking	Fishing with a super rod	35	35%	All places
Magikarp	Fishing with an old rod	15	100%	All places
Gyarados	Fishing with a super rod	35	60%	All places
Azumarill	Surfing	25 to 27	5%	All places
Azumarill	Walking in yellow flowers	25 to 26	20%	All places
Dunsparce	Walking in tall grass or a cave	7	5%	All places
Dunsparce	Walking in yellow flowers	26	5%	All places
Azurill	Walking in tall grass or a cave	6 to 7	20%	All places
Carvanha	Fishing with a good rod	25	35%	All places
Sharpedo	Fishing with a super rod	35	5%	All places
Bidoof	Walking in tall grass or a cave	6	10%	All places
Bibarel	Walking in yellow flowers	26 to 27	20%	All places
Riolu	Walking in tall grass or a cave	6 to 7	5%	All places
Riolu	Walking in yellow flowers	25 to 26	5%	All places
Bunnelby	Walking in tall grass or a cave	5 to 6	20%	All places
Diggersby	Walking in yellow flowers	27	10%	All places
Litleo	Walking in tall grass or a cave	5 to 6	20%	All places
Litleo	Walking in yellow flowers	25	10%	All places