When you exit the building head all the way to the left to find an Ether. On a table on the right side of the room is a Pokeball containing Eevee. Head up all the stairs to the roof and enter the room on the top. When you get to the gap head up and continue to the left. Now go back to the PokeCenter and to the right of the center is a gap, head up it and then follow it to the left. Head inside and talk to the lady on the ground floor to the left when you enter.

West of the PokeCenter, north of the Game Corner is the Celadon Mansion (Gamefreak Building). This is used to store coins which are used in the Casino. Head inside and talk to the guy in the top left hand corner. Heading east along the bottom row of houses, the first is a diner. Don't go in there just yet, instead head south and then west and then south (so we are as far south as we can go). The little building on the right is where you exchange coins for prizes, and the bigger building to the right is the Gaming Room itself. Heading from the PokeCenter to the left and down you will see a red building, this is the Game Corner. Celadon is a big place to explore, so let's start with some of the smaller things and get them out of the way first.

Walkthrough pokemon fire red