Cerulean Cave

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Cerulean Cave
Unknown Dungeon
Location: Northwest of Cerulean City
Region: Kanto
Generations: I, III
Pokémon World Locations

Cerulean Cave (Japanese: ハナダのどうくつ Hanada Cave), sometimes referred to as the Unknown Dungeon (Japanese: ななしのどうくつ Nameless Cave) in Generation I, is a cave located northwest of Cerulean City in Kanto. The cave is home to a wide variety of high-level wild Pokémon. Only trainers who compete and win in the Pokémon League at Indigo Plateau may enter due to the potency of the Pokémon in the cave. At the end of the cave lies Mewtwo, the only one of its species in the game.

Cerulean Cave has had many different layouts over time, getting a change from not only one Generation to the next, but also from one game release to the next. In Pokémon FireRed and LeafGreen, the layout is true to that of the original Red and Green games, aside from the addition of Rock Smash boulders.

Another addition in FireRed/LeafGreen lies in the fact that trainers are now required to further prove themselves before entering the cave, which is done by completing the quest on Sevii Islands and restoring the Network Machine to operational status. Another change is in the fact that more Pokémon can be found only by fishing, while wild Pokémon found just by walking around in the cave are reduced in number. In Generation I, there are also several species that make no sense to be in the cave, such as Dodrio and Pokémon that are otherwise only obtainable by stone-induced evolution, however, this has been fixed in Generation III, at the cost of some of the wild Pokémon diversity.

In Generation II the Unknown Dungeon completely collapsed. However, the leftovers of Mewtwo's presence can still be found in the lake near the cave, in the form of Berserk Gene.

Contents

Items

Generation I

Pokémon Red and Blue

  • Full Restore: on the riverbank near the southwest corner of the first floor; center of the second floor
  • Max Elixir: on the riverbank on the first floor
  • Max Revive: north edge of the basement
  • Nugget: near the northwest corner of the first floor
  • PP Up: east edge of the second floor
  • Ultra Ball: southwest corner of the second floor; center of the basement

Pokémon Yellow

  • Full Restore: east edge of the second floor
  • Max Elixir: west of the entrance on the first floor; north edge of the basement
  • Max Revive: east edge of the first floor; southeast of the second floor's center; center of an elevated area in the basement
  • Rare Candy: southeast corner of the first floor; west edge of the second floor
  • Ultra Ball: center of the first floor; center of the second floor; center of an elevated area in the basement; northeast corner of the basement

Generation III

  • Full Restore: on the riverbank near the southwest corner of the first floor; against the eastern edge of the second floor
  • Max Elixir: near the center of the first floor
  • Max Revive: in the northeast corner of the basement
  • Nugget: in the northwest corner of the first floor
  • PP Up: near the southwest corner of the second floor
  • Ultra Ball: near the southeast corner of the second floor; near the center of the basement

Pokémon

Generation I

English

Name Games Location Levels Rate
Arbok R Floor 1 52 6%
R Basement 57 4%
Raichu R B Floor 1 52 6%
R B Basement 55 12%
Sandslash B Floor 1 6%
B Basement 4%
Wigglytuff R B Floor 2 54 8%
Golbat R B Floor 1 46 16%
Parasect R B Floor 1 52 6%
R B Basement 55 12%
Venomoth R B Floor 1 49 10%
R B Floor 2 51 20%
Kadabra R B Floor 1 49 6%
R B Floor 2 51 8%
Slowbro R B Fishing 23 25%
Magneton R B Floor 1 46 16%
Dodrio R B Floor 1 49 10%
R B Floor 2 51 20%
Hypno R B Floor 1 46 18%
Kingler R B Fishing 23 25%
Electrode R B Floor 2 52 12%
R B Basement 55 14%
Marowak R B Floor 2 52 12%
R B Basement 55 18%
Rhydon R B Floor 2 52 8%
R B Basement 55 16%
Chansey R B Floor 2 56 4%
R B Basement 64 12%
Seadra R B Fishing 23 25%
Seaking R B Fishing 23 25%
Ditto R B Floor 1 53-63 6%
R B Floor 2 53-63 8%
R B Basement 55-63 12%
Mewtwo R B Event 70 Only one

Japanese

Name Games Location Levels Rate
Raticate B
Arbok R
Raichu R G B
Sandslash G B
Clefable B
Wigglytuff R G B
Golbat R G B
Parasect R G B
Venomoth R G B
Kadabra R G B
Magneton R G B
Dodrio R G B
Hypno R G B
Electrode R G B
Marowak R G B
Rhydon R G B
Chansey R G B
Ditto R G B
Mewtwo R G B Event 70 Only one

Pokémon Yellow

Name Games Location Levels Rate
Sandslash Y Floor 1 6%
Y Floor 2 10%
Golbat Y Floor 1 40%
Y F2, Basement 36%
Gloom Y Floor 1 14%
Y Floor 2 10%
Parasect Y Floor 1 8%
Venomoth Y Floor 1 8%
Weepinbell Y Floor 1 12%
Y Floor 2 10%
Graveler Y Floor 1 14%
Y Floor 2 10%
Y Basement 16%
Lickitung Y Basement 8%
Rhyhorn Y Floor 2 8%
Y Basement 10%
Rhydon Y Floor 2 8%
Y Basement 10%
Chansey Y Basement 8%
Goldeen Y Fishing 40%
Seaking Y Fishing 60%
Ditto Y Floors 1-2 8%
Y Basement 12%
Mewtwo Y Event 70 Only one

Pokémon FireRed/LeafGreen

Name Games Location Levels Rate
Golbat FR LG Floor 1 14%
FR LG Floor 2 25%
FR LG Basement 11%
Parasect FR LG Floor 1 25%
FR LG F2/Basement 14%
Psyduck FR Fishing (Super)* 5%
4%
FR Surfing 65%
Golduck FR Surfing 35%
Primeape FR LG Floor 1 11%
Poliwag FR LG Fishing (Good/Super) 60%
40%
Poliwhirl FR LG Fishing (Super) 40%
Kadabra FR LG Floor 2 11%
FR LG Basement 25%
Machoke FR LG F1/Basement 10%
FR LG Floor 2 20%
Geodude FR LG Rock Smash 65%
Graveler FR LG Rock Smash 35%
Slowpoke LG Fishing (Super)* 5%
4%
LG Surfing 65%
Slowbro LG Surfing 35%
Magneton FR LG Floor 1 20%
FR LG F2/Basement 10%
Electrode FR LG Floor 1 5%
FR LG F2/Basement 4%
Goldeen FR LG Fishing (Good) 20%
Magikarp FR LG Fishing (Old/Good) 100%
20%
Gyarados FR LG Fishing (Super)* 15%
16%
Ditto FR LG Floors 1-2 11%
FR LG Basement 25%
Mewtwo FR LG Event 70 Only one
Wobbuffet FR LG Floor 1 4%
FR LG Floor 2 5%
FR LG Basement 1%

*=Indicates catch rate varies by floor. Rates are listed for Floor 1, followed by the Basement in that order.

Differences among Generations

The layout of the cave has been tweaked several times, particularly in Generation I.

Version First floor Second floor Basement
Red/Green
(JP)
Red/Blue (US)
Blue (JP)
Yellow
FireRed/LeafGreen

References

This article is part of Project Locations, a Bulbapedia project that aims to write comprehensive articles on every location in the Pokémon world.
Kanto
Gym: Pewter City | Cerulean City | Vermilion City | Celadon City | Fuchsia City | Saffron City | Cinnabar Island | Viridian City
Other: Pallet Town | Lavender Town
League: Indigo Plateau
Routes: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28
Landmarks: Viridian Forest | Diglett's Cave | Mt. Moon (Square) | Cerulean Cave | Rock Tunnel | Power Plant | Cycling Road | Rocket Hideout
Silph Co. | Pokémon Tower | Safari Zone | Seafoam Islands | Pokémon Mansion | Victory Road | Tohjo Falls



Game locations of Legendary Pokémon
Articuno Zapdos Moltres Mewtwo Mew Celebi Jirachi
Seafoam Islands Power Plant Victory Road* Cerulean Cave Faraway Island* Ilex Forest* None*
Mt. Ember*
Raikou Entei Suicune Lugia Ho-Oh Latias Latios
roaming Johto* roaming Johto* Whirl Islands* Tin Tower* roaming Hoenn*
Tin Tower*
roaming Kanto* Navel Rock** Southern Island**
Regirock Regice Registeel Kyogre Groudon Rayquaza Deoxys
Desert Ruins Island Cave Ancient Tomb Cave of Origin* Sky Pillar Birth Island*
Marine Cave* Terra Cave*
Uxie Mesprit Azelf Dialga Palkia Heatran Regigigas
Lake Acuity Lake Verity*
roaming Sinnoh
Lake Valor Spear Pillar Stark Mountain Snowpoint Temple*
Giratina Cresselia Phione Manaphy Darkrai Shaymin Arceus
Turnback Cave Fullmoon Island*
roaming Sinnoh
breed Manaphy Egg* Newmoon Island* Flower Paradise* Hall of Origin*
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