Yellow

Cerulean Cave

Kanto, 17 Pokémon, also inLGP/LGE HG/SS FR/LG R/B All Games

SimplifiedAdvanced

1F

Map

Walking (Cave)

Pokémon	Lv.	Yellow
Golbat PoisonFlying	50–55	40%
Graveler RockGround	45	15%
Sandslash Ground	52	10%
Gloom GrassPoison	55	10%
Weepinbell GrassPoison	55	10%
Parasect BugGrass	54	5%
Venomoth BugPoison	54	5%
Ditto Normal	55–60	5%

Old Rod

Pokémon	Lv.	Yellow
Magikarp Water	5	100%

Good Rod

Pokémon	Lv.	Yellow
Poliwag Water	10	50%
Goldeen Water	10	50%

Super Rod

Pokémon	Lv.	Yellow
Seaking Water	35–55	60.2%
Goldeen Water	25	39.8%

Items

Rare Candy, Max Elixir, Max Revive, Ultra Ball +1 (1 hidden)

B1F

Map

Walking (Cave)

Pokémon	Lv.	Yellow
Golbat PoisonFlying	54–59	40%
Graveler RockGround	55	15%
Ditto Normal	60–65	15%
Rhyhorn GroundRock	52	10%
Rhydon GroundRock	62	10%
Lickitung Normal	50–55	5%
Chansey Normal	56	5%

Old Rod

Pokémon	Lv.	Yellow
Magikarp Water	5	100%

Good Rod

Pokémon	Lv.	Yellow
Poliwag Water	10	50%
Goldeen Water	10	50%

Super Rod

Pokémon	Lv.	Yellow
Seaking Water	40–60	60.2%
Goldeen Water	30	39.8%

Static Encounter

Pokémon	Lv.
Mewtwo Psychic Static: Cerulean Cave B1F, the deepest floor	70

Items

Ultra Ball, Max Revive, Max Elixir, PP Up +1 (1 hidden)

2F

Map

Walking (Cave)

Pokémon	Lv.	Yellow
Golbat PoisonFlying	52–57	40%
Graveler RockGround	50	15%
Sandslash Ground	56	10%
Rhyhorn GroundRock	50	10%
Ditto Normal	60	10%
Gloom GrassPoison	58	5%
Weepinbell GrassPoison	58	5%
Rhydon GroundRock	58–60	5%

Items

Rare Candy, Ultra Ball, Max Revive, Full Restore +1 (1 hidden)