if you want to do it quickly, go in the building get in the lift and go to level 5F, then go out and acroos as far as you can to the left then head down to the bottom you will see a rocket next to a warp go on the warp then after you have warped go back on to the warp you came off now you will be back where you where go down beat the rocket go across and get the card key. now go back to the lift and go to level 9F and go left again till the wall then go down use the card on the funny door go through and just keep following through.
You need to get the Silph Scope.
Use the portals or the elevator.
Go up the elevator.
You must get to the top floor in Silph Co. and beat Giovanni. Once the battle is won talk to the President of Silph Co. to receive the Silph Scope.
1st time: Team Rocket warehouse under game corner in cealadon city. 2nd time: Silph building, top floor. 3rd time: Viridian Gym.
In Silph Co. in Saffron city. After you get to the top of the building.
at the 5th floor go in the portal and come out then get the key and battle Gary. After that go in the teleporter and battle jessie and james and the director
Once you get the silph scope, you will be able to reveal and defeat the ghost that is blocking the stairway up to the last floor.
Use the silph scope.
You need to get the Silph Scope.
go to the Pokemon tower and beat the person at the top team rocket is in control of the building but the owner has to be beaten in the 1st building in lavander town. also first beat the same person in celedon city at the casino underground.
Use the portals or the elevator.
Go up the elevator.
You must get to the top floor in Silph Co. and beat Giovanni. Once the battle is won talk to the President of Silph Co. to receive the Silph Scope.
The Pokemon is marowak and you need the silph scope to see it.Good luck and hope I helped!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
He is inside the lavender tower,on the very top,but to get to him you need to get the silph scope
Steven will appear in Silph Co. after you defeat Red at the top of Mt. Silver. He will be there to give you the Hoenn starter Pokemon. He will not be there before defeating Red.