If you mean that the ghost is in your way you need to find the Silph Scope and if you need help with that you must battle Team Rocket at the Silph Co. When you reach the top floor after a few mind-racking situations you must battle the Team Rock Leader. Once you win you will get the Silph Scope and a Master Ball. Good luck!
You need to get the Silph Scope.
Get the Silph Scope from the Celadon Rocket Hideout, then ascend to the top of the Pokemon Tower. Then, you'll be able to identify Marowak and defeat it to lay it to rest.
Go up the elevator.
you go to the top floor in the Pokemon tower and then you save mr.fuji and then he give s u the pokeflute
you go to the top because you get ho oh
You need to get the Silph Scope.
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you need a special event so... TOO BAD
You need to go to the Lavender Town's Ghost Tower and get to the top of it and the old ladies will give it to you. Or.... You find Mr Fuji and he gives it to you.
Get the Silph Scope from the Celadon Rocket Hideout, then ascend to the top of the Pokemon Tower. Then, you'll be able to identify Marowak and defeat it to lay it to rest.
at the top of the tower your find him
At the top of Mt Ember.
Go up the elevator.
you go to the top floor in the Pokemon tower and then you save mr.fuji and then he give s u the pokeflute
If you mean the one on the Lavender Town, You need to go to Saffron City and defeat Team Rocket. After that Giovanni (TR Boss) Will give you Sliph Scope, which will allow you to see the ghost of the tower. Once you have defeated the ghost, you can just go up.
go to lavender town and rescue mr. fuji from team rocket at the top of Pokemon tower. go to his home after that and he will give you a flute that wakes up Pokemon (very useful) use this right next to snorlax and he will attack you.
at the top of Pokemon tower