Crossing the Ruins...

Caterpie

Weedle

Spinarak

Hoppip

Pineco

Metapod

Kakuna

Scyther

Butterfree

Beedrill

Yanma

Houndour

Poliwag

Kabuto

Wooper

Poliwhirl

Corsola

Kabutops

Politoed

Mareep

Dark Raichu

Natu

Unown [I]

Xatu

Unown [F]

Unown [D]

Unown [M]

Unown [U]

Espeon

Unown [A]

Wobbuffet

Omanyte

Tyrogue

Larvitar

Omastar

Pupitar

Poliwrath

Hitmontop

Houndour

Umbreon

Houndoom

Tyranitar

Magnemite

Forretress

Scizor

Sentret

Dunsparce

Teddiursa

Eevee

Igglybuff

Ursaring

Smeargle

Energy Ark

Ruin Wall

Fossil Egg

Hyper Devolution Spray