Walkthrough
Once through Mt. Moon, you will come out on the eastern side of Route 4. Before long, you will soon find yourself in Cerulean City, home of the next Pokemon Gym. Since the Gym is ready to battle right as you arrive in Cerulean City, heal your Pokemon at the Pokemon Center and then head immediately there. After defeating the Cerulean City Gym and meeting Bill north of Cerulean City on Route 25, you will have to return to Cerulean City to defeat another member of Team Rocket causing trouble.
Jynx: Trainer Requests Poliwhirl In Return
Wild Pokemon
Surfing:
Tentacool (100%): Levels 5-40
Magikarp (100%): Level 5
Horsea(FireRed)/Krabby(LeafGreen) (60%): Levels 5-15
Krabby(FireRed)/Horsea(LeafGreen) (20%): Levels 5-15
Magikarp (20%): Levels 5-15
Horsea(FireRed)/Krabby(LeafGreen) (84%): Levels 15-35
Gyarados (15%): Levels 15-25
Psyduck(FireRed)/Slowpoke(LeafGreen) (1%): Levels 25-35
Pokemon Trainers
Team Rocket Grunt: Level 17 Machop, Level 17 Drowzee
Items
TM28: On Ground
Rare Candy: ItemFinder
Powder Jar: Gift From Powder Man
Bicycle: From Bicycle Seller (Voucher Needed)
Poke Mart Items
Poke Ball, Super Potion, Potion, Antidote, Paralyze Heal
Awakening, Burn Heal, Escape Rope, Repel
Berry House Items
Energy Powder, Heal Powder, Energy Root, Revival Herb