Celadon City is the second-largest city in the region, and it's got plenty going on to live up to the hype. The Celadon Department Store is an essential stop, since almost anything a Trainer could want is up for sale here. The Celadon Mansion is a hotel-of-sorts, and the current tenants are none other than Game Freak, the team that developed Pokémon. The Game Corner houses the slot machines, and those coins can be redeemed for valuable prizes in the Prize Corner next door. In addition, Celadon is also home to the Celadon Gym, nestled on a hill in the southwest.
The tall building in the north of town is Celadon Mansion. On the third floor, Game Freak's game designer promises a reward for showing him your completed Pokédex. Incidentally, you can find a new addition right now; leave the mansion and follow the path behind the Pokémon Center to find a break in the trees where you can enter the mansion through the back door. Make sure that you've got an empty slot in your party, and take the stairs to the top floor to find an Eevee. Eevee is an extremely versatile creature, since it can evolve into one of three different forms. Exposure to a Water Stone, Thunderstone, or Fire Stone results in a Vaporeon, Jolteon, or a Flareon, respectively. Any of those three evolutions will make a powerful addition to your team, especially since they can cover the weaknesses of your starter's final form. These stones can be purchased only in the Department Store.
Return of the Rockets
If you haven't noticed by now, there are two Rocket grunts loitering around the city. It looks like Team Rocket has something planned for Celadon...
Stop by the café in the south of town and talk to the guy in the back corner. He lost all his money at the slots, so he has no more use for his Coin Case, and hands it over. Next door to the café is an operation that is shipping 2,000 Pokémon every month to the Game Corner as slot prizes. Those kind of numbers mean big money, and that's got Team Rocket's name written all over it. They're up to something, and as one of the workers points out, it surely has nothing to do with a hidden switch behind a poster in the Game Corner.
There's nothing for sale on the third floor, but you can talk to the clerk to get TM18 (Counter).
If you're looking for the evolution stones, you've come to the right place! Buy your favorite stone, except a Leaf Stone, for your new Eevee. Be sure to pick up a Poké Doll too, as it will be important a little later.
Each Vending Machine dispenses Fresh Water, Soda Pop, and Lemonade. Buy one of each drink to give to the little girl nearby, and she'll give you up to three TMs as thanks - TM13 (Ice Beam) for a Fresh Water, TM48 (Rock Slide) for a Soda Pop, and TM49 (Tri Attack) for a Lemonade. Pick up an extra drink for the guards at Saffron City's borders, and stock up on Lemonade. Like the other drinks, Lemonade can restore your Pokémon's health, but Lemonade is the most potent. It restores 80 HP, while by comparison, a Super Potion only restores 50 HP.
At first glance, everything looks normal here. People are relaxed, having fun at the slot machines, but there's something unsettling about the guy glaring at the poster... As soon as you approach him, he picks a fight with you.
All the prizes here are offered at extremely high prices, so you'll need a huge supply of coins to get everything. A few can be found dropped on the ground, and talking to the other gamblers gets you some more. Besides that, you can either buy them—50 coins for 1000—or take your chances with the slots. Someprizes are extremely rare, while others are one-of-a-kind. You'll definitely be back here, so now let's head to the Gym. To get there, head back to the café in the south of town, and cut down the tree blocking the way.
CELADON CITY POKéMON GYM LEADER: ERIKA
The Nature-Loving Princess!
Erika's Gym is one of the easiest to defeat, since Grass Pokémon have so many weaknesses. Fire and Flying Pokémon have the best advantage. While your own Grass Pokémon take less-than-normal damage from Grass attacks, they need to be careful of Poison moves like Acid. If you haven't used TM13 yet, Ice Beam can be a great help.
With the Gym defeated, it's time to infiltrate Team Rocket's Celadon operation. Examine the poster in the Game Corner, which reveals a set of stairs nearby, to descend into their hideout.
Team Rocket is headed by a shadowy figure known as Giovanni. This mob boss is in possession of the Silph Scope prototype, which can identify the ghosts back in Pokémon Tower. It is impossible to get past the spirits without that item, so make sure he doesn't escape with it!
The key to confronting Giovanni in his office is exactly that—a key. The Lift Key that operates the elevator is on the fourth floor beneath the Game Corner.
Rocket Hideout, B2F
After collecting the items on the second floor, you can climb the southern stairs back up to the first floor, where you'll find a Hyper Potion and two more Rockets to battle.
Backtrack to the stairs, spin through the maze again, and take the northern stairs down to the 3rd basement floor.
Rocket Hideout, B3F
Beat the two Rockets here, wind through the maze, and take the stairs in the center of the room down to the fourth floor.
Rocket Hideout, B4F
Walk south to find an HP Up sitting on a table, then go north to find another Rocket. Grab the TM02 (Razor Wind) from the other side of the table, and take out the Rocket. Talk to him after the battle, and he'll drop the Lift Key. Swipe it and get back to B2F, spin through the maze again, and enter the elevator in the southeast. Take a second to use any Potions you might have, and step out of the elevator. Right away, you are ambushed by the same pair ofRockets from Mt. Moon.
After the battle, retrieve the Silph Scope that he dropped. With this, you can finally battle the ghosts in Pokémon Tower. Take the elevator to the 1st floor, and beat one last Rocket on the way out.
Make sure you've got an extra drink, and head back east to Route 7. Step into the gate and the guard will stop you. You'll automatically give him the drink, and since he'll share it with the other three guards, you can now come and go through Saffron City whenever you want. You may want to stop in the Saffron Poké Mart and grab a few Max Repels on your way back east.
Grab the Escape Rope by the north wall and climb the stairs to 4F.
Pokémon Tower, 4F
Pick up the Elixer and Awakening in the center of the room, and the HP Up near the south wall. Climb the western stairs.
Pokémon Tower, 5F
There is a Channeler in the center of the fifth floor that hasn't been possessed, and she maintains a healing area with her white magic. This protected zone will fully heal every Pokémon in your team, restoring health and eliminating any status problems. This can be done at any time.
Pokémon Tower, 6F
As you approach the stairs to the top floor, the ghost attacks and the Silph Scope activates, revealing a level 30 Marowak. It may look like a great addition to your team, but this spirit can't be caught, so all you can do is defeat it. Once the battle is over, the mother Marowak's spirit is calmed and departs to the afterlife, finally able to rest in peace. Take the stairs to the top floor... right into a group of Rockets.