Visit the house in the southeast to meet Mr. Psychic, and receive TM29 (Psychic) from him.
One of Saffron's major attractions is that there are two Gyms here, not one. Located adjacent to the official Saffron Gym, the Fighting Dojo is an optional challenge. While there is no Badge to be won here, the Karate Master will offer the choice of two Fighting Pokémon—the hard-kicking Hitmonlee or the piston-punching Hitmonchan.
The Rocket outside Silph Co. is taking a nap, leaving a perfect opportunity to sneak inside. The company uses warp tiles to allow their employees to quickly move around the huge building, which create a giant maze leading to Giovanni.
The objective is to reach the top floor and rescue the Silph president from Giovanni. Taking the direct route to the top floor avoids most of the 31 battles here and gets right to the boss, after which Leaf can collect the items without opposition. When medical attention becomes an issue, either leave for the Pokémon Center or look for the woman in the southwest corner of 9F.
There is no way to bypass the electronic doors yet, so step on either warp to teleport to 8F.
Clear out the Rockets here, then grab the Iron from the eastern room. Take the elevator to 3F.
Step out of the elevator and take the warp near the stairs back to 2F. The woman here offers to teach Thunder Wave to one of Leaf's Pokémon; you can access her at any point, even after all Rockets have been defeated. Warp back to 3F.
Fight the lone Rocket and take the warp in the southwest to a locked room on 5F. Grab TM01 (Focus Punch) and warp back. Climb the stairs to 4F.
Beat the Rockets here, pick up TM41 (Torment) in the eastern room, and climb to 5F.
Beat the Rocket and Scientist near the stairs, and follow the hallway to the south to find a Rocket next to a warp tile. Defeat the Rocket, jump on the warp, and warp right back. Walk down and follow the narrow path to the right to find the Card Key, which opens the building's electronic doors. Go back towards the Rocket, and open the northwest door for a Protein. Climb upstairs to 6F.
Open the door past the Scientist to find an HP Up and an X Special. Climb to 7F.
Use the Card Key to open the nearest door and grab TM08 (Bulk Up). After battling the Rocket along the north wall (next to the counter), walk to the west to see Blue loitering in the next room. Follow the narrow hallway southward to an area with a Scientist, grab the Calcium, and head up two flights of stairs to 9F.
By now, Leaf's team may be running out of energy. After beating the Rocket, open the door nearby and talk to the woman near the beds. As thanks for her efforts, she heals her team to full health. Beat the second Rocket and take the stairs to 10F.
There are only two thugs to fight here, but make sure to grab the Carbos, Rare Candy, and Ultra Ball from the southwest room. Take the stairs to 11F for a quick battle.
Beat the lone Rocket here, then pick up the Zinc at the south end of the hallway. Take the elevator all the way down to 3F.
Use the Card Key to unlock the door in the center of the floor. Unlock the door beyond that, defeat the Scientist, grab the Hyper Potion behind him, and take the warp near the first door. This sends Leaf up to 7F again.
Rival battle 6
Blue is waiting around to battle Leaf again. His Pokémon have reached respectable levels, but suffer from poor movesets.
With Giovanni defeated, Team Rocket's hold on Silph Co. is broken. The president is so relieved that his company is saved that he rewards Leaf with the Master Ball prototype, a version of Poké Ball that catches any Pokémon without fail!
With the Rockets gone, it is easy to collect any leftover items sitting around the building. Stop by 4F and check the west room for a Full Heal, Max Revive, and Escape Rope. In addition, it is now possible to challenge the Saffron Gym.
SAFFRON CITY POKéMON GYM LEADER: SABRINA
The Master of PSYCHIC POKéMON!