Route 1

Hoothoot (N)

Pidgey

Rattata

Sentret

Spinarak (N)

Furret

Shinx

Route 3

Mankey

Sandshrew (M/D)

Rattata

Ekans

Arbok

Zubat

Spearow

Nidoran (M)

Nidoran (F)

Jigglypuff

Route 2

Caterpie

Metapod

Weedle

Kakuna

Pidgey

Hoothoot (N)

Spinarak (N)

Snubbull

Butterfree

Beedrill

Taillow (M)

Pallet Town

Tentacool (surf)

Tentacruel (surf)

Chinchou (fish)

Goldeen (fish) (M/D)

Magikarp (fish)

Poliwag (fish) (M/N)

Staryu (fish) (N)

Lanturn (fish)

Shellder (fish) (M)