Home | Contact Me | Support the Site |

Main Series Home | Gold, Silver, and Crystal Home

Gold, Silver, and Crystal Minimum Levels

This page lists the lowest possible level at which Pokémon can be obtained in Gold, Silver, and Crystal alone.

Any Pokémon that can be obtained in an Egg can be obtained at level 5. This first table will show only the levels that can be obtained without the use of breeding, except for Pokémon that can only be obtained via breeding. A list of all breedable Pokémon, and evolutions that can be obtained at a lower level by using breeding, is given below the primary table.

The three Kanto starters and their evolutions, all Kanto legendaries, and Omanyte, Omastar, Kabuto, and Kabutops are excluded from the table, as those Pokémon cannot be obtained normally in Gold, Silver, and Crystal.

According to an email I have received, Jigglypuff is not available on Route 46 in Japanese releases of Gold and Silver. As a result, its minimum level is 6 on Routes 3 and 4. I am searching for further information to see if there are other Pokémon whose locations are changed by the localization. If you know of any location data source for Japanese Gold or Silver, please contact me.

Gold, Silver, and Crystal Minimum Levels
Pokémon Games Level Location(s)
Chikorita
Chikorita G S C 5 Gift: New Bark Town
Bayleef
Bayleef G S C 16 Evolve Chikorita
Meganium
Meganium G S C 32 Evolve Bayleef
Cyndaquil
Cyndaquil G S C 5 Gift: New Bark Town
Quilava
Quilava G S C 14 Evolve Cyndaquil
Typhlosion
Typhlosion G S C 36 Evolve Quilava
Totodile
Totodile G S C 5 Gift: New Bark Town
Croconaw
Croconaw G S C 18 Evolve Totodile
Feraligatr
Feraligatr G S C 30 Evolve Croconaw
Pidgey
Pidgey G S C 2 Walking: Routes 29, 30, and 1
G S C 2 Walking: Routes 29 and 1
Pidgeotto
Pidgeotto G S C 7 Walking: Route 2
Pidgeot
Pidgeot G S C 36 Evolve Pidgeotto
Spearow
Spearow G S C 2 Walking: Route 46
Fearow
Fearow G S C 7 Walking: Route 22
Hoothoot
Hoothoot G S C 2 Walking: Routes 29 and 1
G S C 2 Walking: Routes 29, 30, and 1
Noctowl
Noctowl G S C 7 Walking: Route 2
G S C 4 Walking: Route 2
Rattata
Rattata G S C 2 Walking: Routes 29, 46, and 1
Raticate
Raticate G S C 15 Walking: Route 9, Burned Tower 1F
G S C 7 Walking: Route 1
Sentret
Sentret G S C 2 Walking: Route 29
Furret
Furret G S C 6 Walking: Route 1
Pichu
Pichu G S C 5 Breed a Pikachu or Raichu
G S C 5 Breed a Pikachu or Raichu
Gift: Route 34 (Odd Egg)
Pikachu
Pikachu G S C 4 Walking: Route 2
Raichu
Raichu G S C 4 Evolve Pikachu
Caterpie
Caterpie G S C 3 Walking: Routes 30 and 2
G S C 7 Walking: Bug-Catching Contest
Metapod
Metapod G S C 4 Walking: Route 30
G S C 8 Evolve Caterpie
G S C 7 Evolve Caterpie
Walking: Ilex Forest
Butterfree
Butterfree G S C 7 Walking: Route 2
G S C 10 Evolve Metapod
Weedle
Weedle G S C 7 Walking: Bug-Catching Contest
G S C 3 Walking: Routes 30 and 2
G S C 3 Walking: Route 30
Kakuna
Kakuna G S C 8 Evolve Caterpie
G S C 4 Walking: Route 30
G S C 7 Evolve Caterpie
Walking: Ilex Forest
Beedrill
Beedrill G S C 10 Evolve Kakuna
G S C 7 Walking: Route 2
G S C 10 Evolve Kakuna
Headbutt (Common): Ilex Forest
Ledyba
Ledyba G S C 3 Walking: Routes 30 and 2
Ledian
Ledian G S C 7 Walking: Route 2
Spinarak
Spinarak G S C 3 Walking: Routes 30 and 2
Ariados
Ariados G S C 7 Walking: Route 2
Geodude
Geodude G S C 2 Walking: Route 46, Dark Cave (Route 31/46 side)
Graveler
Graveler G S C 23 Walking: Route 45
Golem
Golem G S C 23 Evolve Graveler via trading
Zubat
Zubat G S C 2 Walking: Dark Cave (Route 31/46 side)
Golbat
Golbat G S C 22 Evolve Zubat
Walking: Union Cave B2F, Ice Path 1F and B1F, Tohjo Falls
G S C 13 Walking: Mt. Mortar 1F front
Crobat
Crobat G S C 23 Evolve Golbat
Cleffa
Cleffa G S C 5 Breed a Clefairy or Clefable
G S C 5 Breed a Clefairy or Clefable
Gift: Route 34 (Odd Egg)
Clefairy
Clefairy G S C 8 Walking: Mt. Moon
G S C 6 Walking: Routes 3 and 4
Clefable
Clefable G S C 8 Evolve Clefairy
G S C 6 Evolve Clefairy
Igglybuff
Igglybuff G S C 5 Breed a Jigglypuff or Wigglytuff
G S C 5 Breed a Jigglypuff or Wigglytuff
Gift: Route 34 (Odd Egg)
Jigglypuff
Jigglypuff G S C 3 Walking: Route 46
G S C 12 Walking: Routes 34, 35, and 6
Wigglytuff
Wigglytuff G S C 3 Evolve Jigglypuff
G S C 12 Evolve Jigglypuff
Togepi
Togepi G S C 5 Gift: Violet City
Togetic
Togetic G S C 6 Evolve Togepi
Sandshrew
Sandshrew G S C 6 Walking: Union Cave 1F
G S C 10 Purchase: Goldenrod Game Corner
Sandslash
Sandslash G S C 10 Walking: Mt. Moon
G S C 22 Evolve Sandshrew
Ekans
Ekans G S C 10 Purchase: Goldenrod Game Corner
G S C 4 Walking: Route 32
Arbok
Arbok G S C 22 Evolve Ekans
G S C 10 Walking: Routes 3 and 4
Dunsparce
Dunsparce G S C 2 Walking: Dark Cave (Route 31/46 side)
Mareep
Mareep G S C 6 Walking: Route 32
Flaaffy
Flaaffy G S C 15 Evolve Mareep
Walking: Routes 42 and 43
Ampharos
Ampharos G S C 30 Evolve Flaaffy
Wooper
Wooper G S C 4 Walking: Route 32
Quagsire
Quagsire G S C 15 Surfing: Ruins of Alph Outside, Union Cave 1F and B1F
Gastly
Gastly G S C 3 Walking: Sprout Tower 2F and 3F
Haunter
Haunter G S C 20 Walking: Route 8
G S C 15 Walking: Rock Tunnel B1F
Gengar
Gengar G S C 20 Evolve Haunter via trading
G S C 15 Evolve Haunter via trading
Unown
Unown G S C 5 (all forms) Walking: Ruins of Alph Inside
Onix
Onix G S C 3 In-Game Trade: Violet City (trade a level 3 Bellsprout)
G S C 5 In-Game Trade: Violet City (trade a level 5 Bellsprout)
Steelix
Steelix G S C 3 Evolve Onix via trading
G S C 5 Evolve Onix via trading
Bellsprout
Bellsprout G S C 3 Walking: Route 31
G S C 5 Walking: Routes 31 and 36
Weepinbell
Weepinbell G S C 12 Walking: Route 24
G S C 21 Evolve Bellsprout
Victreebel
Victreebel G S C 12 Evolve Weepinbell
G S C 21 Evolve Weepinbell
Hoppip
Hoppip G S C 6 Walking: Routes 32 and 33
G S C 3 Walking: Route 29
Skiploom
Skiploom G S C 18 Evolve Hoppip
Jumpluff
Jumpluff G S C 27 Evolve Skiploom
Paras
Paras G S C 5 Walking: Ilex Forest
G S C 6 Walking: Ilex Forest
Parasect
Parasect G S C 24 Evolve Paras
Poliwag
Poliwag G S C 5 Surfing: Viridian City, Route 22
G S C 3 Walking: Route 22
Poliwhirl
Poliwhirl G S C 10 Surfing: Viridian City, Route 22
Poliwrath
Poliwrath G S C 10 Evolve Poliwhirl
Politoed
Politoed G S C 10 Evolve Poliwhirl via trading
Magikarp
Magikarp G S C 5 Surfing: Blackthorn City, Route 45, Dark Cave (all areas)
Fishing (Old Rod): Route 32 (only during a swarm)
Gyarados
Gyarados G S C 15 Surfing: Lake of Rage
Goldeen
Goldeen G S C 5 Surfing: Cerulean City, Routes 4, 24, and 25
Seaking
Seaking G S C 10 Surfing: Cerulean City, Routes 4, 24, and 25
Slowpoke
Slowpoke G S C 6 Walking: Slowpoke Well B1F
Slowbro
Slowbro G S C 20 Surfing: Slowpoke Well B2F
Slowking
Slowking G S C 6 Evolve Slowpoke via trading
Oddish
Oddish G S C 5 Walking: Ilex Forest
Gloom
Gloom G S C 15 Walking: Route 5
G S C 14 Walking: Route 24
Vileplume
Vileplume G S C 15 Evolve Gloom
G S C 14 Evolve Gloom
Bellossom
Bellossom G S C 15 Evolve Gloom
G S C 14 Evolve Gloom
Drowzee
Drowzee G S C 10 Walking: Route 34
G S C 12 Walking: Routes 34 and 35
Hypno
Hypno G S C 16 Walking: Route 11
Abra
Abra G S C 9 Walking: Routes 24 and 25
G S C 10 Walking: Routes 34 and 35
Purchase: Goldenrod Game Corner
Kadabra
Kadabra G S C 15 Walking: Route 8
G S C 16 Evolve Abra
Walking: Route 8
Alakazam
Alakazam G S C 15 Evolve Kadabra via trading
G S C 16 Evolve Kadabra via trading
Ditto
Ditto G S C 10 Walking: Routes 34 and 35
Pineco
Pineco G S C 10 Headbutt (Rare): Azalea Town, Routes 34, 35, 36, 37, 38, 39, 26, and 27, Ilex Forest, Lake of Rage
G S C 10 Headbutt (Common): Ilex Forest
Headbutt (Rare): Routes 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 43, 26, and 27, Lake of Rage
Forretress
Forretress G S C 31 Evolve Pineco
Nidoran♀
Nidoran♀ G S C 12 Walking: Routes 35 and 36
G S C 12 Walking: Route 35, National Park
Nidorina
Nidorina G S C 16 Evolve Nidoran♀
Nidoqueen
Nidoqueen G S C 16 Evolve Nidorina
Nidoran♂
Nidoran♂ G S C 12 Walking: Routes 35 and 36
G S C 12 Walking: Route 35, National Park
Nidorino
Nidorino G S C 16 Evolve Nidoran♂
Nidoking
Nidoking G S C 16 Evolve Nidorino
Yanma
Yanma G S C 12 Walking: Route 35
Sunkern
Sunkern G S C 10 Walking: Route 24
G S C 12 Walking: Route 24
Sunflora
Sunflora G S C 10 Evolve Sunkern
G S C 12 Evolve Sunkern
Exeggcute
Exeggcute G S C 10 Headbutt (any tree): Azalea Town, Routes 34, 35, 36, 37, 38, 39, 26, and 27, Ilex Forest, Lake of Rage
G S C 10 Headbutt (any tree): Routes 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 43, 26, and 27, Lake of Rage
Exeggutor
Exeggutor G S C 10 Evolve Exeggcute
Sudowoodo
Sudowoodo G S C 20 Static: Route 36
Wobbuffet
Wobbuffet G S C 20 Walking: Dark Cave (Route 45 side)
G S C 15 Purchase: Goldenrod Game Corner
Venonat
Venonat G S C 8 Walking: Routes 24 and 25
G S C 5 Walking: Ilex Forest
Venomoth
Venomoth G S C 10 Walking: Routes 24 and 25
G S C 15 Walking: Routes 9 and 10
Scyther
Scyther G S C 13 Walking: Bug-Catching Contest
Scizor
Scizor G S C 13 Evolve Scyther via trading
Pinsir
Pinsir G S C 13 Walking: Bug-Catching Contest
Heracross
Heracross G S C 10 Headbutt (Rare): Routes 29, 30, 31, 32, 33, 42, 43, and 44
G S C 10 Headbutt (Rare): Azalea Town, Routes 33, 42, and 44
Koffing
Koffing G S C 14 Walking: Burned Tower (both floors)
G S C 12 Walking: Burned Tower B1F
Weezing
Weezing G S C 35 Evolve Koffing
G S C 16 Walking: Burned Tower B1F
Grimer
Grimer G S C 15 Surfing: Celadon City
Muk
Muk G S C 15 Surfing: Celadon City
Magnemite
Magnemite G S C 15 Walking: Routes 6 and 11
Magneton
Magneton G S C 30 Evolve Magnemite
G S C 16 In-Game Trade: Power Plant (trade a level 16 Dugtrio)
Voltorb
Voltorb G S C 10 In-Game Trade: Olivine City (trade a level 10 Krabby)
Electrode
Electrode G S C 23 Static: Team Rocket HQ (Three)
Aipom
Aipom G S C 10 Headbutt (any tree): Routes 29, 30, 31, 32, 33, 42, 43, and 44
G S C 10 Headbutt (any tree): Azalea Town, Routes 33, 42, and 44
Snubbull
Snubbull G S C 13 Walking: Route 38
G S C 10 Walking: Route 34
Granbull
Granbull G S C 23 Evolve Snubbull
G S C 15 Walking: Route 6
Vulpix
Vulpix G S C 13 Walking: Route 6
Ninetales
Ninetales G S C 13 Evolve Vulpix
Growlithe
Growlithe G S C 13 Walking: Route 36
G S C 5 Walking: Route 36
Arcanine
Arcanine G S C 13 Evolve Growlithe
G S C 5 Evolve Growlithe
Stantler
Stantler G S C 13 Walking: Route 36
G S C 14 Walking: Route 37
Marill
Marill G S C 13 Walking: Mt. Mortar 1F front
G S C 14 Walking: Mt. Mortar 1F front
Azumarill
Azumarill G S C 18 Evolve Marill
Diglett
Diglett G S C 13 Walking: Diglett's Cave
G S C 2 Walking: Diglett's Cave
Dugtrio
Dugtrio G S C 19 Walking: Diglett's Cave
G S C 16 Walking: Diglett's Cave
Mankey
Mankey G S C 13 Walking: Route 9
Primeape
Primeape G S C 15 Walking: Route 9
Meowth
Meowth G S C 14 Walking: Routes 5 and 6
G S C 13 Walking: Routes 5, 6, and 11
Persian
Persian G S C 19 Walking: Route 7
G S C 18 Walking: Route 7
Psyduck
Psyduck G S C 5 Surfing: Route 6
Golduck
Golduck G S C 10 Surfing: Route 6
Machop
Machop G S C 10 In-Game Trade: Goldenrod Department Store (trade a level 10 Drowzee or Abra)
Machoke
Machoke G S C 14 Walking: Rock Tunnel 1F
G S C 15 Walking: Rock Tunnel 1F
Machamp
Machamp G S C 14 Evolve Machoke via trading
G S C 15 Evolve Machoke via trading
Tyrogue
Tyrogue G S C 10 Gift: Mt. Mortar B1F
G S C 5 Gift: Route 34 (Odd Egg)
Hitmonlee
Hitmonlee G S C 20 Evolve Tyrogue
Hitmonchan
Hitmonchan G S C 20 Evolve Tyrogue
Hitmontop
Hitmontop G S C 20 Evolve Tyrogue
Girafarig
Girafarig G S C 15 Walking: Route 43
Tauros
Tauros G S C 13 Walking: Route 38
Miltank
Miltank G S C 13 Walking: Route 38
Magby
Magby G S C 5 Breed Magmar
G S C 5 Breed Magmar
Gift: Route 34 (Odd Egg)
Magmar
Magmar G S C 14 Walking: Burned Tower B1F
G S C 45 Walking: Mt. Silver 1F
Smoochum
Smoochum G S C 5 Breed Jynx
G S C 5 Breed Jynx
Gift: Route 34 (Odd Egg)
Jynx
Jynx G S C 20 Walking: Ice Path 1F and B1F
G S C 22 Walking: Ice Path B1F, B2F, and B3F
Elekid
Elekid G S C 5 Breed Electabuzz
G S C 5 Breed Electabuzz
Gift: Route 34 (Odd Egg)
Electabuzz
Electabuzz G S C 15 Walking: Route 10
G S C 16 Walking: Route 10
Mr. Mime
Mr. Mime G S C 15 Purchase: Celadon Game Corner
G S C 28 Walking: Route 21
Smeargle
Smeargle G S C 20 Walking: Ruins of Alph Outside
Farfetch'd
Farfetch'd G S C 16 Walking: Routes 38 and 39
G S C 16 Walking: Route 43
Natu
Natu G S C 18 Walking: Ruins of Alph Outside
Xatu
Xatu G S C 20 Evolve Natu
G S C 15 In-Game Trade: Pewter City (trade a level 15 Haunter)
Qwilfish
Qwilfish G S C 5 Fishing (Old Rod): Route 32
Tentacool
Tentacool G S C 10 Fishing (Old Rod): New Bark Town, Olivine Harbor, Pallet Town, Vermilion City, Cinnabar Island, Routes 32, 41, 26, 27, 12, 13, 20, and 21
Tentacruel
Tentacruel G S C 20 Surfing: New Bark Town, Cherrygrove City, Olivine City, Cianwood City, Routes 32, 34, 40, 41, and 27, Union Cave B2F, Whirl Islands 1F, B2F, and Lugia's Room
Krabby
Krabby G S C 10 Fishing (Old Rod): Cherrygrove City, Olivine City, Cianwood City, Routes 34, 40, and 19, Union Cave B2F, Whirl Islands 1F, B2F, and Lugia's Room
Kingler
Kingler G S C 28 Evolve Krabby
Shuckle
Shuckle G S C 15 Gift: Cianwood City
Rock Smash: Cianwood City, Route 40, Dark Cave (Route 31/46 side)
Staryu
Staryu G S C 20 Fishing (Good Rod): Cherrygrove City, Olivine City, Cianwood City, Routes 34, 40, and 19, Union Cave B2F
Starmie
Starmie G S C 20 Evolve Staryu
Shellder
Shellder G S C 20 Fishing (Good Rod): New Bark Town, Olivine Harbor, Pallet Town, Vermilion City, Cinnabar Island, Routes 41, 26, 27, 20, and 21
Cloyster
Cloyster G S C 20 Evolve Shellder
Corsola
Corsola G S C 20 Fishing (Good Rod): Cherrygrove City, Olivine City, Cianwood City, Routes 34, 40, and 19, Union Cave B2F
Remoraid
Remoraid G S C 10 Fishing (Old Rod): Route 44
Octillery
Octillery G S C 25 Evolve Remoraid
Chinchou
Chinchou G S C 20 Fishing (Good Rod): New Bark Town, Olivine Harbor, Pallet Town, Vermilion City, Cinnabar Island, Routes 41, 26, 27, 20, and 21
Lanturn
Lanturn G S C 27 Evolve Chinchou
Seel
Seel G S C 22 Walking: Whirl Islands 1F
Dewgong
Dewgong G S C 34 Evolve Seel
Lickitung
Lickitung G S C 24 Walking: Route 44
G S C 22 Walking: Route 44
Tangela
Tangela G S C 20 Walking: Route 21
G S C 23 Walking: Route 44
Eevee
Eevee G S C 15 Purchase: Celadon Game Corner
G S C 20 Gift: Goldenrod City
Vaporeon
Vaporeon G S C 15 Evolve Eevee
G S C 20 Evolve Eevee
Jolteon
Jolteon G S C 15 Evolve Eevee
G S C 20 Evolve Eevee
Flareon
Flareon G S C 15 Evolve Eevee
G S C 20 Evolve Eevee
Espeon
Espeon G S C 16 Evolve Eevee
G S C 21 Evolve Eevee
Umbreon
Umbreon G S C 16 Evolve Eevee
G S C 21 Evolve Eevee
Horsea
Horsea G S C 15 Surfing: Whirl Islands 1F and B2F
Seadra
Seadra G S C 20 Surfing: Whirl Islands Lugia's Room
Kingdra
Kingdra G S C 20 Evolve Seadra via trading
Gligar
Gligar G S C 24 Walking: Route 45
Delibird
Delibird G S C 22 Walking: Ice Path 1F and B1F
G S C 21 Walking: Ice Path 1F
Swinub
Swinub G S C 21 Walking: Ice Path 1F and B1F
G S C 21 Walking: Ice Path 1F
Piloswine
Piloswine G S C 33 Evolve Swinub
Teddiursa
Teddiursa G S C 20 Walking: Route 45
G S C 2 Walking: Dark Cave (Route 31/46 side)
Ursaring
Ursaring G S C 30 Evolve Teddiursa
G S C 25 Walking: Dark Cave (Route 45 side)
Phanpy
Phanpy G S C 20 Walking: Route 45
G S C 2 Walking: Route 46
Donphan
Donphan G S C 25 Evolve Phanpy
G S C 25 Evolve Phanpy
Walking: Route 45
Mantine
Mantine G S C 20 Surfing: Route 41
Skarmory
Skarmory G S C 27 Walking: Route 45
Doduo
Doduo G S C 4 Walking: Route 22
Dodrio
Dodrio G S C 30 Walking: Route 26
G S C 30 Walking: Route 27
G S C 10 In-Game Trade: Blackthorn City (trade a level 10 Dragonair)
Ponyta
Ponyta G S C 6 Walking: Route 22
Rapidash
Rapidash G S C 15 In-Game Trade: Pewter City (trade a level 15 Gloom)
G S C 40 Evolve Ponyta
Walking: Route 28
Cubone
Cubone G S C 10 Walking: Rock Tunnel 1F
Marowak
Marowak G S C 14 Walking: Rock Tunnel B1F
G S C 12 Walking: Rock Tunnel 1F
Kangaskhan
Kangaskhan G S C 14 Walking: Rock Tunnel B1F
G S C 15 Walking: Rock Tunnel B1F
Rhyhorn
Rhyhorn G S C 35 Walking: Victory Road (all floors)
G S C 32 Walking: Victory Road (all floors)
Rhydon
Rhydon G S C 10 In-Game Trade: Blackthorn City (trade a level 10 Dragonair)
G S C 35 Walking: Victory Road (all floors)
Murkrow
Murkrow G S C 17 Walking: Route 7
Houndour
Houndour G S C 15 Walking: Route 7
G S C 18 Walking: Route 7
Houndoom
Houndoom G S C 24 Evolve Houndour
Slugma
Slugma G S C 25 Walking: Route 17
G S C 29 Walking: Routes 16, 17, 18
Magcargo
Magcargo G S C 38 Evolve Slugma
Sneasel
Sneasel G S C 38 Walking: Mt. Silver Outside
G S C 22 Walking: Ice Path B1F, B2F, and B3F
Misdreavus
Misdreavus G S C 45 Walking: Mt. Silver 2F and item rooms
Porygon
Porygon G S C 20 Purchase: Celadon Game Corner
G S C 15 Purchase: Celadon Game Corner
Porygon2
Porygon2 G S C 20 Evolve Porygon via trading
G S C 15 Evolve Porygon via trading
Chansey
Chansey G S C 25 Walking: Routes 13, 14, and 15
G S C 25 Walking: Routes 13 and 15
Blissey
Blissey G S C 26 Evolve Chansey
Lapras
Lapras G S C 20 Static: Union Cave B2F
Aerodactyl
Aerodactyl G S C 25 In-Game Trade: Route 14 (trade a level 25 Chansey)
Snorlax
Snorlax G S C 50 Static: Vermilion City
Raikou
Raikou G S C 40 Walking: Roaming Legend
Entei
Entei G S C 40 Walking: Roaming Legend
Suicune
Suicune G S C 40 Walking: Roaming Legend
G S C 40 Static: Tin Tower 1F
Dratini
Dratini G S C 10 Surfing: Dragon's Den
Purchase: Goldenrod Game Corner
Fishing (Good Rod): Route 45
G S C 10 Surfing: Dragon's Den
Fishing (Good Rod): Route 45
Dragonair
Dragonair G S C 10 Fishing (Super Rod): Route 45
Dragonite
Dragonite G S C 55 Evolve Dragonair
Larvitar
Larvitar G S C 15 Walking: Mt. Silver 1F, 2F, Summit, and item rooms
G S C 15 Walking: Mt. Silver 1F, 2F, and Summit
Pupitar
Pupitar G S C 30 Evolve Larvitar
G S C 20 Walking: Mt. Silver Summit
Tyranitar
Tyranitar G S C 55 Evolve Pupitar
Lugia
Lugia G S C 70 Static: Whirl Islands B3F
G S C 40 Static: Whirl Islands B3F
G S C 60 Static: Whirl Islands B3F
Ho-Oh
Ho-Oh G S C 40 Static: Tin Tower 10F
G S C 70 Static: Tin Tower 10F
G S C 60 Static: Tin Tower 10F
Mew
Mew G S C 5 The only way to obtain Mew without glitches or hacking was to receive it in an event for a physical copy of Red, Blue, Yellow, Gold, Silver, or Crystal between 1996 and 2002, or for the Virtual Console rerelease of Red, Blue, and Yellow in 2016. In all known distributions, it was level 5.
Celebi
Celebi G S C 5 or 30 The GS Ball that gave access to the event in Ilex Forest was only available without glitches or hacking in the Japanese version of Crystal, through connecting to the Mobile System GB (discontinued in 2002), and in all regions' Virtual Console releases of Crystal. The Celebi obtained via this event was level 30.
Otherwise, Celebi could only be obtained without glitches or hacking in events between 2000 and 2003. In all known distributions, it was level 5.

Breeding

The following table shows all Pokémon that can be obtained at level 5 via breeding.

Chikorita
Chikorita
Cyndaquil
Cyndaquil
Totodile
Totodile
Pidgey
Pidgey
Spearow
Spearow
Hoothoot
Hoothoot
Rattata
Rattata
Sentret
Sentret
Pichu
Pichu
Caterpie
Caterpie
Weedle
Weedle
Ledyba
Ledyba
Spinarak
Spinarak
Geodude
Geodude
Zubat
Zubat
Cleffa
Cleffa
Igglybuff
Igglybuff
Togepi
Togepi
Sandshrew
Sandshrew
Ekans
Ekans
Dunsparce
Dunsparce
Mareep
Mareep
Wooper
Wooper
Gastly
Gastly
Onix
Onix
Bellsprout
Bellsprout
Hoppip
Hoppip
Paras
Paras
Poliwag
Poliwag
Magikarp
Magikarp
Goldeen
Goldeen
Slowpoke
Slowpoke
Oddish
Oddish
Drowzee
Drowzee
Abra
Abra
Pineco
Pineco
Nidoran♀
Nidoran♀
Nidoran♂
Nidoran♂
Yanma
Yanma
Sunkern
Sunkern
Exeggcute
Exeggcute
Sudowoodo
Sudowoodo
Wobbuffet
Wobbuffet
Venonat
Venonat
Scyther
Scyther
Pinsir
Pinsir
Heracross
Heracross
Koffing
Koffing
Grimer
Grimer
Magnemite
Magnemite
Voltorb
Voltorb
Aipom
Aipom
Snubbull
Snubbull
Vulpix
Vulpix
Growlithe
Growlithe
Stantler
Stantler
Marill
Marill
Diglett
Diglett
Mankey
Mankey
Meowth
Meowth
Psyduck
Psyduck
Machop
Machop
Tyrogue
Tyrogue
Girafarig
Girafarig
Tauros
Tauros
Miltank
Miltank
Magby
Magby
Smoochum
Smoochum
Elekid
Elekid
Mr. Mime
Mr. Mime
Smeargle
Smeargle
Farfetch'd
Farfetch'd
Natu
Natu
Qwilfish
Qwilfish
Tentacool
Tentacool
Krabby
Krabby
Shuckle
Shuckle
Staryu
Staryu
Shellder
Shellder
Corsola
Corsola
Remoraid
Remoraid
Chinchou
Chinchou
Seel
Seel
Lickitung
Lickitung
Tangela
Tangela
Eevee
Eevee
Horsea
Horsea
Gligar
Gligar
Delibird
Delibird
Swinub
Swinub
Teddiursa
Teddiursa
Phanpy
Phanpy
Mantine
Mantine
Skarmory
Skarmory
Doduo
Doduo
Ponyta
Ponyta
Cubone
Cubone
Kangaskhan
Kangaskhan
Rhyhorn
Rhyhorn
Murkrow
Murkrow
Houndour
Houndour
Slugma
Slugma
Sneasel
Sneasel
Porygon
Porygon
Chansey
Chansey
Lapras
Lapras
Aerodactyl
Aerodactyl
Snorlax
Snorlax
Dratini
Dratini
Larvitar
Larvitar

The following table shows all evolved Pokémon that can be obtained at a lower level by evolving a bred Pokémon.

Pokémon Level
Metapod
Metapod 7
Kakuna
Kakuna 7
Clefairy
Clefairy 6
Clefable
Clefable 6
Jigglypuff
Jigglypuff 6
Wigglytuff
Wigglytuff 6
Sunflora
Sunflora 5
Exeggutor
Exeggutor 5
Scizor
Scizor 5
Ninetales
Ninetales 5
Arcanine
Arcanine 5
Magmar
Magmar 30
Starmie
Starmie 5
Cloyster
Cloyster 5
Vaporeon
Vaporeon 5
Jolteon
Jolteon 5
Flareon
Flareon 5
Espeon
Espeon 6
Umbreon
Umbreon 6
Porygon2
Porygon2 5
Blissey
Blissey 6