Route 24 and Nugget Bridge

Wild Pokemon
Pokemon Type Candy Area LGP LGE
Pidgey Normal/Flying Quick Land X X
Psyduck Water Smart Land X X
Oddish Grass/Poison Smart Land X
Bellsprout Grass/Poison Mighty Land X
Venonat Bug/Poison Courage Land X X
Squirtle Water Tough Land X X
Magikarp Water Quick Sea X X
Tentacool Water/Poison Courage Sea X X
Tentacruel Water/Poison Courage Sea X X

North of Cerulean City is Nugget Bridge, which is also part of Route 24. Defeat the five trainers lined up along the bridge to receive a Nugget. This is a valuable item that can be sold at a Poke Mart for P5,000.

Bug Catcher Cale

Venonat ♂ Lv.9 Type Bug/Poison
Tackle Disable
Normal Physical Normal Status
Normal Status

Defeat Cale to receive P108 and 3 Poke Balls.

Lass Ali

Psyduck ♂ Lv.10 Type Water
Scratch Tail Whip
Normal Physical Normal Status
Water Gun Confusion
Water Special Psychic Special

Defeat Ali to receive P200 and 3 Poke Balls.

Youngster Timmy

Sandshrew ♂ Lv.10 Type Ground
Scratch Defense Curl
Normal Physical Normal Status
Poison Sting Sand Attack
Poison Physical Ground Status

Defeat Timmy to receive P200 and 3 Poke Balls.

Lass Reli

Meowth ♀ Lv.10 Type Normal
Growl Bite
Normal Status Dark Physical
Fake Out Taunt
Normal Physical Dark Status

Defeat Reli to receive P200 and 3 Poke Balls.

Camper Kevin

Growlithe ♂ Lv.11 Type Fire
Roar Ember
Normal Status Fire Special
Leer Helping Hand
Normal Status Normal Status

Defeat Kevin to receive P220 and 3 Great Balls. You’ll also receive the Nugget for defeating all five trainers on Nugget Bridge! However, the last person will try to force you to join Team Rocket.

Team Rocket Grunt

Zubat ♂ Lv.11 Type Poison/Flying
Absorb Supersonic
Grass Special Normal Status
Wing Attack Bite
Flying Physical Dark Physical
Koffing ♂ Lv.11 Type Poison
Poison Gas Tackle
Poison Status Normal Physical
Poison Special

Defeat the Grunt to receive P308 and to get Team Rocket off your back for now. That clears the Nugget Bridge, but there’s one more Pokemon Trainer to the west. You can also get a free Pokemon to the northwest! Speak with the man on the small hill to the northwest, and if you’ve captured enough Pokemon he’ll give you a Charmander! Make sure you save before receiving the Charmander because the nature will be random. Reset the game if you want a different nature. The stats should be much better than most wild Pokemon.

The final Trainer of Route 24 can be found in the tall grass to the west of Nugget Bridge.

Camper Shane

Spearow ♂ Lv.11 Type Normal/Flying
Peck Growl
Flying Physical Normal Status
Leer Focus Energy
Normal Status Normal Status

Defeat Shane to receive P220 and 2 Great Balls. That clears Route 24. Head to the east into Route 25 to continue your adventure. The routes will automatically merge into each other, and the wild Pokemon found in the tall grass will be the same between the two.