Route 12: 21 species in 2 games

Road 12: 21 species across 4 versions

White and BlackWhite 2 and Black 2

Black and White: 15 species
Species	Method	Levels	Chance	Game page
Metapod	Walking in dark grass	59	10%	All places
Metapod	Walking in tall grass or a cave	48	10%	All places
Butterfree	Walking in rustling grass	50	5%	All places
Rapidash	Walking in dark grass	59	10%	All places
Rapidash	Walking in tall grass or a cave	49	10%	All places
Pinsir	Walking in dark grass	60	5%	All places
Pinsir	Walking in tall grass or a cave	50	5%	All places
Sunkern	Walking in dark grass	57	20%	All places
Sunkern	Walking in tall grass or a cave	47	20%	All places
Sunflora	Walking in rustling grass	50	5%	All places
Dunsparce	Walking in dark grass	59	5%	All places
Dunsparce	Walking in tall grass or a cave	48	5%	All places
Heracross	Walking in dark grass	60	5%	All places
Heracross	Walking in tall grass or a cave	50	5%	All places
Combee	Walking in dark grass	57	20%	All places
Combee	Walking in tall grass or a cave	47	20%	All places
Vespiquen	Walking in rustling grass	50	5%	All places
Cherrim	Walking in dark grass	58	10%	All places
Cherrim	Walking in tall grass or a cave	48	10%	All places
Tranquill	Walking in dark grass	58 to 60	15%	All places
Tranquill	Walking in tall grass or a cave	48 to 50	15%	All places
Unfezant	Walking in rustling grass	50	5%	All places
Audino	Walking in rustling grass	47 to 50	70%	All places
Emolga	Walking in rustling grass	48	10%	All places

Black 2 and White 2: 12 species
Species	Method	Levels	Chance	Game page
Pinsir	Walking in dark grass	40 to 42	15%	All places
Pinsir	Walking in tall grass or a cave	36 to 38	15%	All places
Dunsparce	Walking in rustling grass	36	10%	All places
Roselia	Walking in dark grass	39 to 41	25%	All places
Roselia	Walking in tall grass or a cave	35 to 37	25%	All places
Roserade	Walking in rustling grass	38	5%	All places
Combee	Walking in dark grass	39	20%	All places
Combee	Walking in tall grass or a cave	35	20%	All places
Vespiquen	Walking in rustling grass	38	5%	All places
Tranquill	Walking in dark grass	40 to 42	25%	All places
Tranquill	Walking in tall grass or a cave	36 to 38	25%	All places
Unfezant	Walking in rustling grass	38	5%	All places
Audino	Walking in rustling grass	35 to 37	60%	All places
Sewaddle	Walking in dark grass	40 to 42	15%	All places
Sewaddle	Walking in tall grass or a cave	36 to 38	15%	All places
Leavanny	Walking in rustling grass	38	5%	All places
Emolga	Walking in rustling grass	36	10%	All places