Viridian Forest

Pokemon Red

PokemonLevelsMethodRarity
010Caterpie3Walking in tall grass or a cave5%
014Kakuna4-6Walking in tall grass or a cave40%
011Metapod4Walking in tall grass or a cave5%
025Pikachu3-5Walking in tall grass or a cave5%
013Weedle3-5Walking in tall grass or a cave45%

Pokemon Blue

PokemonLevelsMethodRarity
010Caterpie3-5Walking in tall grass or a cave45%
014Kakuna4Walking in tall grass or a cave5%
011Metapod4-6Walking in tall grass or a cave40%
025Pikachu3-5Walking in tall grass or a cave5%
013Weedle3Walking in tall grass or a cave5%

Pokemon Yellow

PokemonLevelsMethodRarity
010Caterpie3-6Walking in tall grass or a cave50%
011Metapod4-6Walking in tall grass or a cave25%
017Pidgeotto9Walking in tall grass or a cave1%
016Pidgey4-8Walking in tall grass or a cave24%

Pokemon FireRed

PokemonLevelsMethodRarity
010Caterpie3-5Walking in tall grass or a cave40%
014Kakuna4-6Walking in tall grass or a cave10%
011Metapod5Walking in tall grass or a cave5%
025Pikachu3-5Walking in tall grass or a cave5%
013Weedle3-5Walking in tall grass or a cave40%

Pokemon LeafGreen

PokemonLevelsMethodRarity
010Caterpie3-5Walking in tall grass or a cave40%
014Kakuna5Walking in tall grass or a cave5%
011Metapod4-6Walking in tall grass or a cave10%
025Pikachu3-5Walking in tall grass or a cave5%
013Weedle3-5Walking in tall grass or a cave40%

Pokemon HeartGold

PokemonLevelsMethodRarity
406Budew3Walking in tall grass or a cave20%
012Butterfree7Walking in tall grass or a cave10%
455Carnivine5Walking in tall grass or a cave20%
010Caterpie3Walking in tall grass or a cave80%
163Hoothoot3-5Walking in tall grass or a cave80%
401Kricketot3Walking in tall grass or a cave40%
011Metapod3-5Walking in tall grass or a cave60%
164Noctowl7Walking in tall grass or a cave15%
322Numel5Walking in tall grass or a cave20%
017Pidgeotto7Walking in tall grass or a cave13%
016Pidgey3-7Walking in tall grass or a cave25%
025Pikachu4-7Walking in tall grass or a cave7%
325Spoink3Walking in tall grass or a cave20%

Pokemon SoulSilver

PokemonLevelsMethodRarity
015Beedrill7Walking in tall grass or a cave10%
406Budew3Walking in tall grass or a cave20%
455Carnivine5Walking in tall grass or a cave20%
163Hoothoot3-5Walking in tall grass or a cave80%
014Kakuna3-5Walking in tall grass or a cave60%
401Kricketot3Walking in tall grass or a cave40%
164Noctowl7Walking in tall grass or a cave15%
322Numel5Walking in tall grass or a cave20%
017Pidgeotto7Walking in tall grass or a cave13%
016Pidgey3-7Walking in tall grass or a cave25%
025Pikachu4-7Walking in tall grass or a cave7%
325Spoink3Walking in tall grass or a cave20%
013Weedle3Walking in tall grass or a cave80%