A portal diamond on the third floor directly down from the elevator and to the left in a room with a laptop on the desk (make sure you have the card key to open the door) will lead you to an upper level where you must defeat Gary and a few Rocket Grunts before facing Giovanni.
There's a girl on the ninth floor that will replenish the health of your pokémon if needs be first. Best of luck.
Players fight Giovanni three times throughout the course of the game. The first time is in the Rocket Hideout in the basement of the Celadon Game Corner. The second time is on the highest floor of Silph Co.'s building in Saffron City. The third and final time is in the Viridian City's Gym, where he presides as the leader. All three times, his specialty is Ground-Type Pokémon, though in Yellow, he also uses his trademark Persian.
Just find the card key and open the locked doors. Giovanni is in the level 11 in silph co..you can find Gary before you battle Giovanni.
He's on the very top floor of the building. If you beat him in a battle the president of Silph Co. will give you the one and only Master Ball.
no you will not meet Gary at the Silph Co. you will be battling Giovanni there.
Silph Co.
he is in the Silph Co building. he is held hostage by Giovanni but upon defeating Giovanni the boss of the company will give you master ball.
The CEO of Silph Co. will give it to you after you beat Giovanni at Silph Tower.
you have to finish the team rocket part in Silph co. and beat Giovanni.
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.
You can get a Master Ball at Silph Co. from the Silph Co. President after you beat Giovanni.
go to the Silph Co building in Saffron City where Giovanni has taken control of the building and he held hostage the president of Silph Co. after defeating Giovanni, the president will give you a master ball.
The president of silph co gives it to you after beating giovanni.
All you need to do is find Giovanni and defeat him.
you find Giovanni in silph co.
you have to deafeat Giovanni in the silph co. tower in saffron city