Route 2

Pokemon Red

PokemonLevelsMethodRarity
016Pidgey3-5Walking in tall grass or a cave45%
019Rattata2-5Walking in tall grass or a cave40%
013Weedle3-5Walking in tall grass or a cave15%

Pokemon Blue

PokemonLevelsMethodRarity
010Caterpie3-5Walking in tall grass or a cave15%
016Pidgey3-5Walking in tall grass or a cave45%
019Rattata2-5Walking in tall grass or a cave40%

Pokemon Yellow

PokemonLevelsMethodRarity
029Nidoran F4-6Walking in tall grass or a cave15%
032Nidoran M4-6Walking in tall grass or a cave15%
016Pidgey3-7Walking in tall grass or a cave35%
019Rattata3-4Walking in tall grass or a cave35%

Pokemon FireRed and LeafGreen

PokemonLevelsMethodRarity
010Caterpie4-5Walking in tall grass or a cave5%
016Pidgey2-5Walking in tall grass or a cave45%
019Rattata2-5Walking in tall grass or a cave45%
013Weedle4-5Walking in tall grass or a cave5%

Pokemon HeartGold

PokemonLevelsMethodRarity
168Ariados7Walking in tall grass or a cave10%
012Butterfree7-8Walking in tall grass or a cave30%
010Caterpie3-4Walking in tall grass or a cave124%
163Hoothoot3-5Walking in tall grass or a cave100%
011Metapod5Walking in tall grass or a cave60%
312Minun5Walking in tall grass or a cave40%
164Noctowl7-10Walking in tall grass or a cave28%
017Pidgeotto7-10Walking in tall grass or a cave28%
016Pidgey3-8Walking in tall grass or a cave150%
311Plusle3Walking in tall grass or a cave40%
403Shinx3-5Walking in tall grass or a cave80%
167Spinarak3-10Walking in tall grass or a cave70%

Pokemon SoulSilver

PokemonLevelsMethodRarity
015Beedrill7-10Walking in tall grass or a cave28%
163Hoothoot3-5Walking in tall grass or a cave120%
014Kakuna3-7Walking in tall grass or a cave102%
166Ledian7-10Walking in tall grass or a cave18%
165Ledyba3-10Walking in tall grass or a cave68%
312Minun5Walking in tall grass or a cave40%
164Noctowl7Walking in tall grass or a cave28%
017Pidgeotto7Walking in tall grass or a cave10%
016Pidgey3-7Walking in tall grass or a cave120%
311Plusle3Walking in tall grass or a cave40%
403Shinx3-5Walking in tall grass or a cave80%
013Weedle3-5Walking in tall grass or a cave102%