Pokémon FireRed and LeafGreen/Pokémon Tower

The situation in Pokémon Tower is grave indeed, but with the Silph Scope, you should be able to dig up whatever is causing all the trouble. You don't have to do anything special with the scope, but just make sure you have it with you when you enter the tower. The Silph Scope automatically identifies ghosts and makes it possible to engage them in combat.

If you cleared out the tower earlier, skip to the bottom to finally identify the ghost that was blocking the way to the final floor and clear out the Rocket grunts.

Into the Tower


With the Silph Scope in your hot little hands, it's time to head back to Pokémon Tower and figure out what the heck is going on. The quickest path is to go back to Route #7, hand the guard the tea from the lady in Celadon to end the baffling "Thirsty Guard" crisis, and then cut through Saffron City on your way East to Lavender Town.

On your way through Saffron City, you might just want to stop in at the Poké Mart and grab a Max Repel. The Repel is for the Tower, where you'll be assaulted by Gastlies, Gastlies, an occasional Haunter, and more Gastlies, but if you plan to fight some Gastlies it might be best to use Pidgeotto.

Another Rival Battle!


When your rival gets in your way on the second floor, he'll pick a fight as usual. Depending on your starter Pokemon he may have an alternate lineup.

You'll face the first lineup if you chose as your starter, the second lineup if you chose, and the third lineup if you chose.

Fighting Ghosts
Pokémon with Psychic attacks like and, are really powerful here against these Ghosts, as they also have the Poison type. Farfetch'd is also a strong option because it is immune to all of Gastly's moves except. But those are few and far between, so if you don't want to deal with lots of random encounters, just pop open the Max Repel... After you catch a for yourself.

Addition: If you have Pokemon with Ghost or Dark type moves (such as Bite), they work pretty well against the Ghosts as well. After catching your own Ghost type here, you can train it up a little and use it to wipe out the ghosts.



A chance for rest
The leader of the Channelers has broken free of the dark power that held her, and created a reusable healing zone on the 5th floor. Make sure you heal and save while you have the opportunity, since there are a number of surprises ahead.

Surprise, surprise
The first surprise is at the stairway to the top floor, where the Ghost that you needed the Silph Scope for finally reveals itself as a level 30. Make sure you have some strong, non-Psychic Pokémon for this fight! Unfortunately, you can't catch it, even with a Masterball, as it dodges the ball every time.

At the top
More non-Gastly foes await on the top floor. There are three rocket grunts up here.

Mr. Fuji
After you've bested those foes, you'll find the missing Mr. Fuji. He'll thank you for your efforts with a gift of a Poké Flute, which you can use to awaken any sleeping Pokémon, and which finally makes that skill useful.

You can also use it to wake up that sleeping that was blocking the passage between Route #11 outside of Vermilion City and Route #12 south of Lavender Town. But first, let's pay a visit to Saffron City.

As a side note, make sure to come back and use the Itemfinder in the same place where Mr. Fuji stood. You'll get a Soothe Bell for your troubles!!!

Items

 * Escape Rope: on the north side of the third floor
 * Elixir: near the staircase leading from the third floor to the fourth floor
 * Awakening: in the center of the fourth floor
 * Great Ball: on the south side of the fourth floor
 * Cleanse Tag: in the center of the healing spot
 * Big Mushroom (hidden): above and to the left of the northernmost Channeler on the fifth floor.
 * Nugget: on the south side of the fifth floor near the healing spot
 * X Accuracy: near the staircase leading from the fifth floor to the sixth floor
 * Rare Candy: on the southwest side of the sixth floor
 * Soothe Bell: search the exact spot Mr. Fuji was standing with the Item Finder on the seventh floor