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Red, Green, Blue, and Yellow Stat Generation

In Red, Green, Blue, and Yellow, when a Pokémon is generated, it will have DVs generated between 0 and 15 for its Attack, Defense, Special, and Speed stats. The HP DV is determined using the DVs of the other four stats, once they have been generated. A proper random generation of stats would allow for any configuration of the four main stat DVs to be obtainable on any Pokémon, but the method by which the game generates stats means that, in reality, not all spreads are available on every Pokémon. This page explains the process and shows what possibilities are available for what Pokémon.

Overview

When the game is running, it normally tracks two numbers in memory, which we we call 'RandomAdd' and 'RandomSub'. On every frame, the game will update them using a hardware timer, which we call 'rDiv'. This timer will increment regardless of what the player is doing in the game, meaning the player has no control over it at any point.

When the player is in an area in which they can get wild encounters, the game will generate a wild encounter as follows, using three consecutive values from RandomAdd.

  1. The game checks if an encounter should happen at all.
  2. The game determines the Speed and Special DVs for the encounter.
  3. The game determines the Attack and Defense DVs.

Because RandomAdd is always updated using the ever-increasing rDiv number, and because all three numbers are taken from RandomAdd at one time, this effectively means that the results of the DVs generated in steps 2 and 3 are linked to the result of step 1 - whether an encounter happens at all. In order for an encounter to occur, the starting RandomAdd value must be less than the encounter rate for the area. Since, therefore, only a few small possible values for RandomAdd will ever trigger an encounter, only a few small possible values will be used for generating the DVs, rather than the entire range of possible RandomAdd values.

This incidentally has the effect that areas with higher encounter rates provide more possible DV combinations, since the value of RandomAdd has a greater range.

The short version is that the possible range of DVs a Pokémon can have is tied to the encounter rate of the area(s) it is found in.

Encounter Rates

The above explanation indicates that areas with the same encounter rate will have the same possible DV spreads available for Pokémon that can be found there. The tables below indicate which encounter rate is used by every location that can have wild encounters, and what Pokémon are available there. The lowest possible level for each Pokémon (and its evolution) is also provided, which can help in identifying, say, whether the Pokémon is legal for one of the Stadium cups or with a certain move.

Fishing encounters do not use this method of generation. They are part of the "Other encounter types" discussed below.

Encounter Rate 3

The areas that use this rate are:

This pastebin contains the possible spreads available for locations with this encounter rate in Yellow. I have also copied the list here in case anything happens to the pastebin.

The Pokémon that can be found in these areas are:

Rate 3 Encounters
Pokémon Locations Minimum Level
Psyduck
Psyduck Route 6 15
Golduck
Golduck Evolve Psyduck 33
Route 6 15
Slowpoke
Slowpoke Routes 12 and 13 15
Slowbro
Slowbro Evolve Slowpoke 37
Routes 12 and 13 15

Encounter Rate 5

The areas that use this rate are:

This pastebin contains the possible spreads available for locations with this encounter rate in Red, Green, and Blue, and this pastebin is for Yellow. I have also copied the lists here and here in case anything happens to the pastebins.

The Pokémon that can be found in these areas are:

Rate 5 Encounters
Pokémon Games Locations Minimum Level
Tentacool
Tentacool R B Y Routes 19, 20, and 21 5
R B Y Routes 19, 20, and 21, Seafoam Islands B3F and B4F
Tentacruel
Tentacruel R B Y Evolve Tentacool 30
Staryu
Staryu R B Y Seafoam Islands B3F and B4F 30
Starmie
Starmie R B Y Evolve Staryu 30

Encounter Rate 8

The areas that use this rate are:

This pastebin contains the possible spreads available for locations with this encounter rate in Red, Green, and Blue. I have also copied the list here in case anything happens to the pastebin.

The Pokémon that can be found in this area are:

Rate 8 Encounters
Pokémon Games Minimum Level
Caterpie
Caterpie R B 3
Metapod
Metapod R B 7 (Evolve Caterpie)
R B 4
Butterfree
Buttefree R B 10 (Evolve Metapod)
Weedle
Weedle R B 3
Kakuna
Kakuna R B 7 (Evolve Weedle)
R B 4
Beedrill
Beedrill R B 10 (Evolve Kakuna)
Pikachu
Pikachu R B 3
Raichu
Raichu R B 3 (Evolve Pikachu)

Encounter Rate 10

The areas that use this rate are:

This pastebin contains the possible spreads available for locations with this encounter rate in Red, Green, and Blue, and this pastebin is for Yellow. I have also copied the lists here and here in case anything happens to the pastebin.

The Pokémon that can be found in these areas are:

Rate 10 Encounters
Pokémon Games Locations Minimum Level
Rattata
Rattata R B Y Pokémon Mansion 1F, 2F, and 3F 34
Raticate
Raticate R B Y Evolve Rattata 35
R B Y Pokémon Mansion (all floors) 34
Spearow
Spearow R B Y Route 23 26
Fearow
Fearow R B Y Evolve Spearow 27
R B Y Route 23 38
R B Y 40
Ekans
Ekans R B Y Route 23 26
Arbok
Arbok R B Y Evolve Ekans 27
R B Y Route 23, Cerulean Cave 1F 41
Pikachu
Pikachu R B Y Power Plant 20
Raichu
Raichu R B Y Evolve Pikachu 20
R B Y Cerulean Cave 1F 53
R B Y Power Plant, Cerulean Cave 1F 33
Sandshrew
Sandshrew R B Y Route 23 26
R B Y Mt. Moon 1F 12
Sandslash
Sandslash R B Y Evolve Sandshrew 27
R B Y 22
R B Y Route 23, Cerulean Cave 1F 41
R B Y Cerulean Cave 1F 52
Nidorina
Nidorina R B Y Route 23 41
Nidorino
Nidorino R B Y Route 23 41
Clefairy
Clefairy R B Y Mt. Moon (all floors) 8
R B Y 9
Clefable
Clefable R B Y Evolve Clefairy 8
R B Y 9
Vulpix
Vulpix R B Y Pokémon Mansion (all floors) 32
Ninetales
Ninetales R B Y Evolve Vulpix 32
Zubat
Zubat R B Y Mt. Moon (all floors), Victory Road 2F 6
R B Y Mt. Moon (all floors), Seafoam Islands B1F, B2F, B3F, and B4F, Victory Road 2F
Golbat
Golbat R B Y Evolve Zubat 22
R B Y Seafoam Islands B2F and B4F, Victory Road 2F, Cerulean Cave 1F 30
R B Y Seafoam Islands B1F, B2F, B3F, and B4F, Victory Road 2F, Cerulean Cave 1F 27
Gloom
Gloom R B Y Cerulean Cave 1F 55
Vileplume
Vileplume R B Y Evolve Gloom 55
Paras
Paras R B Y Mt. Moon (all floors) 8
R B Y 9
Parasect
Parasect R B Y Evolve Paras 24
R B Y Cerulean Cave 1F 52
R B Y 54
Venomoth
Venomoth R B Y Cerulean Cave 1F 49
R B Y 54
Psyduck
Psyduck R B Y Seafoam Islands B1F, B2F, B3F, and B4F 28
Golduck
Golduck R B Y Evolve Psyduck 33
R B Y Seafoam Islands B2F and B4F 37
Mankey
Mankey R B Y Route 23 36
Primeape
Primeape R B Y Evolve Mankey 37
R B Y Route 23 41
Growlithe
Growlithe R B Y Pokémon Mansion (all floors) 32
R B Y Pokémon Mansion 1F 26
Arcanine
Arcanine R B Y Evolve Growlithe 32
R B Y 26
Kadabra
Kadabra R B Y Cerulean Cave 1F 49
Alakazam
Alakazam R B Y Evolve Kadabra 49
Machop
Machop R B Y Victory Road 2F 22
Machoke
Machoke R B Y Evolve Machop 28
R B Y Victory Road 2F 41
R B Y 39
Machamp
Machamp R B Y Evolve Machoke evolved from Machop 28
R B Y Evolve Machoke 41
R B Y 39
Weepinbell
Weepinbell R B Y Cerulean Cave 1F 55
Victreebel
Victreebel R B Y Evolve Weepinbell 55
Geodude
Geodude R B Y Mt. Moon (all floors), Victory Road 2F 7
R B Y 10
Graveler
Graveler R B Y Evolve Geodude 25
R B Y Victory Road 2F 43
R B Y Victory Road 2F, Cerulean Cave 1F 44
Golem
Golem R B Y Evolve Graveler evolved from Geodude 25
R B Y Evolve Graveler 43
R B Y 44
Ponyta
Ponyta R B Y Pokémon Mansion (all floors) 28
Rapidash
Rapidash R B Y Evolve Ponyta 40
Slowpoke
Slowpoke R B Y Seafoam Islands B1F, B2F, B3F, and B4F 28
R B Y Seafoam Islands B1F and B2F 29
Slowbro
Slowbro R B Y Evolve Slowpoke 37
R B Y Seafoam Islands B2F and B4F 37
R B Y Seafoam Islands B2F 31
Magnemite
Magnemite R B Y Power Plant 21
R B Y 30
Magneton
Magneton R B Y Evolve Magnemite 30
R B Y 31
R B Y Power Plant, Cerulean Cave 1F 32
R B Y Power Plant 33
Dodrio
Dodrio R B Y Cerulean Cave 1F 49
Seel
Seel R B Y Seafoam Islands B1F, B2F, B3F, and B4F 28
R B Y 22
Dewgong
Dewgong R B Y Evolve Seel 34
R B Y Seafoam Islands B1F and B3F 37
R B Y Seafoam Islands B3F and B4F 28
Grimer
Grimer R B Y Pokémon Mansion (all floors) 30
R B Y Power Plant, Pokémon Mansion (all floors) 23
Muk
Muk R B Y Evolve Grimer 38
R B Y Pokémon Mansion (all floors) 37
R B Y Power Plant, Pokémon Mansion 2F, 3F, and B1F 33
Shellder
Shellder R B Y Seafoam Islands B1F, B2F, B3F, and B4F 28
R B Y Seafoam Islands B1F and B2F 30
Cloyster
Cloyster R B Y Evolve Shellder 28
R B Y 30
Gastly
Gastly R B Y Pokémon Tower 3F, 4F, and 5F 18
R B Y Pokémon Tower 3F and 4F
Haunter
Haunter R B Y Evolve Gastly 25
R B Y Pokémon Tower 3F, 4F, and 5F 25
R B Y Pokémon Tower 3F and 4F 20
Gengar
Gengar R B Y Evolve Haunter 25
R B Y 20
Onix
Onix R B Y Victory Road 2F 36
R B Y 45
Hypno
Hypno R B Y Cerulean Cave 1F 46
Krabby
Krabby R B Y Seafoam Islands B1F, B2F, B3F, and B4F 28
R B Y 26
Kingler
Kingler R B Y Evolve Krabby 29
R B Y 28
R B Y Seafoam Islands B1F and B3F 37
R B Y Seafoam Islands B1F, B2F, B3F, and B4F 28
Voltorb
Voltorb R B Y Power Plant 21
R B Y 33
Electrode
Electrode R B Y Evolve Voltorb 30
R B Y 34
Cubone
Cubone R B Y Pokémon Tower 3F, 4F, and 5F 20
Marowak
Marowak R B Y Evolve Cubone 28
R B Y Victory Road 2F 40
Koffing
Koffing R B Y Pokémon Mansion (all floors) 30
R B Y Pokémon Mansion 1F, 2F, and B1F 30
Weezing
Weezing R B Y Evolve Koffing 35
R B Y Pokémon Mansion (all floors) 37
Horsea
Horsea R B Y Seafoam Islands B1F, B2F, B3F, and B4F 28
Seadra
Seadra R B Y Evolve Horsea 32
R B Y Seafoam Islands B2F and B4F 37
Staryu
Staryu R B Y Seafoam Islands B1F and B2F 30
R B Y Seafoam Islands B1F, B2F, B3F, and B4F 28
Starmie
Starmie R B Y Evolve Staryu 30
R B Y 28
Electabuzz
Electabuzz R B Y Power Plant 33
Magmar
Magmar R B Y Pokémon Mansion 3F and B1F 34
Ditto
Ditto R B Y Route 23, Cerulean Cave 1F 33
R B Y Pokémon Mansion B1F, Cerulean Cave 1F 12

Encounter Rate 15

The areas that use this rate are:

This pastebin contains the possible spreads available for locations with this encounter rate in Red, Green, and Blue, and this pastebin is for Yellow. I have also copied the lists here and here in case anything happens to the pastebins.

The Pokémon that can be found in these areas are:

Rate 15 Encounters
Pokémon Games Locations Minimum Level
Caterpie
Caterpie R B Y Route 25 8
Metapod
Metapod R B Y Evolve Caterpie 9
R B Y Route 25 7
R B Y 9
Butterfree
Butterfree R B Y Evolve Metapod 10
Weedle
Weedle R B Y Route 25 8
Kakuna
Kakuna R B Y Evolve Weedle 9
R B Y Route 25 9
R B Y 7
Beedrill
Beedrill R B Y Evolve Kakuna 10
Pidgey
Pidgey R B Y Routes 5, 6, 7, 8, 12, 14, 15, and 25 13
R B Y Routes 5, 6, 7, 8, 11, 12, 13, and 25
Pidgeotto
Pidgeotto R B Y Evolve Pidgey 18
R B Y Routes 14 and 15 28
R B Y Routes 5, 6, 7, 8, 11, 12, 13, 14, 15, and 25 17
Pidgeot
Pidgeot R B Y Evolve Pidgeotto 36
Rattata
Rattata R B Y Route 9 14
R B Y Routes 5, 6, 7, 8, 9, 10, and 11
Raticate
Raticate R B Y Evolve Rattata 20
R B Y Routes 9, 10, and 11 17
Spearow
Spearow R B Y Routes 9, 10, and 11 13
R B Y Route 9 17
Fearow
Fearow R B Y Evolve Spearow 20
R B Y Route 9 19
Ekans
Ekans R B Y Routes 8, 9, 10, and 11 11
Arbok
Arbok R B Y Evolve Ekans 22
Sandshrew
Sandshrew R B Y Routes 8, 9, 10, and 11 11
Sandslash
Sandslash R B Y Evolve Sandshrew 22
R B Y Cerulean Cave 2F 56
Nidoran♀
Nidoran♀ R B Y Routes 9 and 10 16
Nidorina
Nidorina R B Y Evolve Nidoran♀ 17
R B Y Route 9 18
Nidoqueen
Nidoqueen R B Y Evolve Nidorina evolved from Nidoran♀ 17
R B Y Evolve Nidorina 18
Nidoran♂
Nidoran♂ R B Y Routes 9 and 10 16
Nidorino
Nidorino R B Y Evolve Nidoran♂ 17
R B Y Route 9 18
Nidoking
Nidoking R B Y Evolve Nidorino evolved from Nidoran♂ 17
R B Y Evolve Nidorino 18
Vulpix
Vulpix R B Y Routes 7 and 8 15
Ninetales
Ninetales R B Y Evolve Vulpix 15
Jigglypuff
Jigglypuff R B Y Routes 5, 6, 7, and 8 3
Wigglytuff
Wigglytuff R B Y Evolve Jigglypuff 3
R B Y Cerulean Cave 2F 54
Zubat
Zubat R B Y Rock Tunnel (both floors), Seafoam Islands 1F, Victory Road 1F and 3F 15
R B Y Rock Tunnel (both floors), Seafoam Islands 1F, Victory Road 1F 9
Golbat
Golbat R B Y Evolve Zubat 22
R B Y Seafoam Islands 1F, Victory Road 1F and 3F 29
R B Y Seafoam Islands 1F, Victory Road 3F, Cerulean Cave 2F 27
Oddish
Oddish R B Y Routes 5, 6, 7, 12, 14, 15, and 25 12
R B Y Routes 12, 13, 14, 15, and 25
Gloom
Gloom R B Y Evolve Oddish 21
R B Y Routes 12, 14, and 15 28
R B Y Routes 12, 13, 14, and 15, Cerulean Cave 2F 29
Vileplume
Vileplume R B Y Evolve Gloom evolved from Oddish 21
R B Y Evolve Gloom 28
R B Y 29
Venonat
Venonat R B Y Routes 12, 14, and 15 24
R B Y Routes 14, 15, and 25 13
Venomoth
Venomoth R B Y Evolve Venonat 31
R B Y Victory Road 3F, Cerulean Cave 2F 40
R B Y Routes 14 and 15 30
Meowth
Meowth R B Y Routes 5, 6, 7, and 8 10
Persian
Persian R B Y Evolve Meowth 28
Psyduck
Psyduck R B Y Seafoam Islands 1F 28
R B Y 30
Golduck
Golduck R B Y Evolve Psyduck 33
R B Y Seafoam Islands 1F 38
Mankey
Mankey R B Y Routes 5, 6, 7, and 8 10
Primeape
Primeape R B Y Evolve Mankey 28
Growlithe
Growlithe R B Y Routes 7 and 8 15
Arcanine
Arcanine R B Y Evolve Growlithe 15
Abra
Abra R B Y Route 25 10
R B Y Routes 5, 6, 7, and 8 7
Kadabra
Kadabra R B Y Evolve Abra 16
R B Y Cerulean Cave 2F 49
R B Y Route 8 20
Alakazam
Alakazam R B Y Evolve Kadabra evolved from Abra 16
R B Y Evolve Kadabra 49
R B Y 20
Machop
Machop R B Y Rock Tunnel (both floors), Victory Road 1F and 3F 15
R B Y Route 10 and Rock Tunnel (both floors) 16
Machoke
Machoke R B Y Evolve Machop 28
R B Y Victory Road 1F and 3F 42
R B Y Victory Road 3F
Machamp
Machamp R B Y Evolve Machoke evolved from Machop 28
R B Y Evolve Machoke 42
Bellsprout
Bellsprout R B Y Routes 5, 6, 7, 12, 14, 15, and 25 12
R B Y Routes 12, 13, 14, 15, and 25
Weepinbell
Weepinbell R B Y Evolve Bellsprout 21
R B Y Routes 12, 14, and 15 28
R B Y Routes 12, 13, 14, and 15, Cerulean Cave 2F 29
Victreebel
Victreebel R B Y Evolve Weepinbell evolved from Bellsprout 21
R B Y Evolve Weepinbell 28
R B Y 29
Geodude
Geodude R B Y Rock Tunnel (both floors) and Victory Road 1F and 3F 16
Graveler
Graveler R B Y Evolve Geodude 25
R B Y Victory Road 1F and 3F 41
R B Y Victory Road 1F and 3F, Cerulean Cave 2F
Golem
Golem R B Y Evolve Graveler evolved from Geodude 25
R B Y Evolve Graveler 41
Slowpoke
Slowpoke R B Y Seafoam Islands 1F 30
R B Y 28
Slowbro
Slowbro R B Y Evolve Slowpoke 37
R B Y Seafoam Islands 1F 38
Magnemite
Magnemite R B Y Route 10 16
Magneton
Magneton R B Y Evolve Magnemite 30
Farfetch'd
Farfetch'd R B Y Routes 12 and 13 26
Dodrio
Dodrio R B Y Cerulean Cave 2F 51
Seel
Seel R B Y Seafoam Islands 1F 30
Dewgong
Dewgong R B Y Evolve Seel 34
Shellder
Shellder R B Y Seafoam Islands 1F 28
Cloyster
Cloyster R B Y Evolve Shellder 28
Gastly
Gastly R B Y Pokémon Tower 6F and 7F 19
R B Y Pokémon Tower 5F and 6F 21
Haunter
Haunter R B Y Evolve Gastly 25
R B Y Pokémon Tower 6F and 7F 26
R B Y Pokémon Tower 5F and 6F 22
Gengar
Gengar R B Y Evolve Haunter evolved from Gastly 25
R B Y Evolve Haunter 26
R B Y 22
Onix
Onix R B Y Rock Tunnel (both floors), Victory Road 1F and 3F 13
R B Y Rock Tunnel B1F, Victory Road 1F and 3F 14
Drowzee
Drowzee R B Y Route 11 9
R B Y 15
Hypno
Hypno R B Y Evolve Drowzee 26
Krabby
Krabby R B Y Seafoam Islands 1F 28
R B Y 25
Kingler
Kingler R B Y Evolve Krabby 29
R B Y 28
Voltorb
Voltorb R B Y Route 10 14
Electrode
Electrode R B Y Evolve Voltorb 30
R B Y Cerulean Cave 2F 52
Cubone
Cubone R B Y Pokémon Tower 6F and 7F 22
R B Y Pokémon Tower 5F and 6F 20
Marowak
Marowak R B Y Evolve Cubone 28
R B Y Victory Road 1F, Cerulean Cave 2F 43
Rhyhorn
Rhyhorn R B Y Cerulean Cave 2F 50
Rhydon
Rhydon R B Y Evolve Rhyhorn 51
R B Y Cerulean Cave 2F 52
R B Y 58
Chansey
Chansey R B Y Cerulean Cave 2F 56
Horsea
Horsea R B Y Seafoam Islands 1F 28
Seadra
Seadra R B Y Evolve Horsea 32
Staryu
Staryu R B Y Seafoam Islands 1F 28
Starmie
Starmie R B Y Evolve Staryu 28
Ditto
Ditto R B Y Routes 14 and 15, Cerulean Cave 2F 23
R B Y Cerulean Cave 2F 60

Encounter Rate 20

The areas that use this rate are:

This pastebin contains the possible spreads available for locations with this encounter rate in Red, Green, and Blue, and this pastebin is for Yellow. I have also copied the lists here and here in case anything happens to the pastebins.

The Pokémon that can be found in these areas are:

Rate 20 Encounters
Pokémon Games Locations Minimum Level
Pidgey
Pidgey R B Y Routes 3 and 13 6
Pidgeotto
Pidgeotto R B Y Evolve Pidgey 18
Pidgeot
Pidgeot R B Y Evolve Pidgeotto 36
Rattata
Rattata R B Y Route 4 8
R B Y Routes 3 and 4 10
Raticate
Raticate R B Y Evolve Rattata 20
Spearow
Spearow R B Y Routes 3 and 4 5
R B Y 8
Fearow
Fearow R B Y Evolve Spearow 20
Ekans
Ekans R B Y Route 4 6
Arbok
Arbok R B Y Evolve Ekans 22
Sandshrew
Sandshrew R B Y Route 4 6
R B Y Routes 3 and 4 8
Sandslash
Sandslash R B Y Evolve Sandshrew 22
Jigglypuff
Jigglypuff R B Y Route 3 3
Wigglytuff
Wigglytuff R B Y Evolve Jigglypuff 3
Oddish
Oddish R B Y Route 13 22
Gloom
Gloom R B Y Evolve Oddish 23
R B Y Route 13 28
Vileplume
Vileplume R B Y Evolve Gloom evolved from Oddish 23
R B Y Evolve Gloom 28
Venonat
Venonat R B Y Route 13 24
Venomoth
Venomoth R B Y Evolve Venonat 31
Diglett
Diglett R B Y Diglett's Cave 15
Dugtrio
Dugtrio R B Y Evolve Diglett 26
R B Y Diglett's Cave 29
Mankey
Mankey R B Y Routes 3 and 4 9
Primeape
Primeape R B Y Evolve Mankey 28
Bellsprout
Bellsprout R B Y Route 13 22
Weepinbell
Weepinbell R B Y Evolve Bellsprout 23
R B Y Route 13 28
Victreebel
Victreebel R B Y Evolve Weepinbell evolved from Bellsprout 23
R B Y Evolve Weepinbell 28
Gastly
Gastly R B Y Pokémon Tower 7F 23
Haunter
Haunter R B Y Evolve Gastly 25
R B Y Pokémon Tower 7F 24
Gengar
Gengar R B Y Evolve Haunter evolved from Gastly 25
R B Y Evolve Haunter 24
Cubone
Cubone R B Y Pokémon Tower 7F 24
Marowak
Marowak R B Y Evolve Cubone 28
Ditto
Ditto R B Y Route 13 25

Encounter Rate 25

The areas that use this rate are:

This pastebin contains the possible spreads available for locations with this encounter rate in Red, Green, and Blue, and this pastebin is for Yellow. I have also copied the lists here and here in case anything happens to the pastebins.

The Pokémon that can be found in these areas are:

Rate 25 Encounters
Pokémon Games Locations Minimum Level
Caterpie
Caterpie R B Y Routes 2 and 24 3
R B Y Viridian Forest
Metapod
Metapod R B Y Evolve Caterpie 7
R B Y Route 24 8
R B Y Viridian Forest 4
Butterfree
Butterfree R B Y Evolve Metapod 10
Weedle
Weedle R B Y Routes 2 and 24 3
Kakuna
Kakuna R B Y Evolve Weedle 7
R B Y Route 24 8
Beedrill
Beedrill R B Y Evolve Kakuna 10
Pidgey
Pidgey R B Y Routes 1, 2, 21, and 24 2
R B Y Routes 1, 2, 21, and 24, Viridian Forest
Pidgeotto
Pidgeotto R B Y Evolve Pidgey 18
R B Y Route 21 30
R B Y Routes 21 and 24, Viridian Forest 9
Pidgeot
Pidgeot R B Y Evolve Pidgeotto 36
Rattata
Rattata R B Y Routes 1, 2, 16, 21, and 22 2
R B Y Routes 1, 2, 16, 18, 21, and 22
Raticate
Raticate R B Y Evolve Rattata 20
R B Y Routes 16, 17, 18, and 21 23
R B Y Routes 16, 18, and 21 15
Spearow
Spearow R B Y Routes 16, 17, 18, and 22 3
R B Y Routes 16, 18, and 22 2
Fearow
Fearow R B Y Evolve Spearow 20
R B Y Routes 17 and 18 25
R B Y Routes 16, 17, and 18 24
Arbok
Arbok R B Y Cerulean Cave B1F 57
Raichu
Raichu R B Y Cerulean Cave B1F 64
Sandslash
Sandslash R B Y Cerulean Cave B1F 57
Nidoran♀
Nidoran♀ R B Y Route 22 3
R B Y 2
R B Y Routes 2 and 22 2
Nidorina
Nidorina R B Y Evolve Nidoran♀ 16
Nidoqueen
Nidoqueen R B Y Evolve Nidorina 16
Nidoran♂
Nidoran♂ R B Y Route 22 2
R B Y 3
R B Y Routes 2 and 22 2
Nidorino
Nidorino R B Y Evolve Nidoran♂ 16
Nidoking
Nidoking R B Y Evolve Nidorino 16
Golbat
Golbat R B Y Cerulean Cave B1F 54
Oddish
Oddish R B Y Route 24 12
Gloom
Gloom R B Y Evolve Oddish 21
Vileplume
Vileplume R B Y Evolve Gloom 21
Parasect
Parasect R B Y Cerulean Cave B1F 64
Venonat
Venonat R B Y Route 24 13
Venomoth
Venomoth R B Y Evolve Venonat 31
Mankey
Mankey R B Y Route 22 3
Primeape
Primeape R B Y Evolve Mankey 28
Abra
Abra R B Y Route 24 8
Kadabra
Kadabra R B Y Evolve Abra 16
Alakazam
Alakazam R B Y Evolve Kadabra 16
Bellsprout
Bellsprout R B Y Route 24 12
Weepinbell
Weepinbell R B Y Evolve Bellsprout 21
Victreebel
Victreebel R B Y Evolve Weepinbell 21
Graveler
Graveler R B Y Cerulean Cave B1F 55
Golem
Golem R B Y Evolve Graveler 55
Ponyta
Ponyta R B Y Route 17 28
Rapidash
Rapidash R B Y Evolve Ponyta 40
Doduo
Doduo R B Y Routes 16, 17, and 18 18
R B Y 22
Dodrio
Dodrio R B Y Evolve Doduo 31
R B Y Route 17 29
Electrode
Electrode R B Y Cerulean Cave B1F 55
Marowak
Marowak R B Y Cerulean Cave B1F 55
Lickitung
Lickitung R B Y Cerulean Cave B1F 50
Rhyhorn
Rhyhorn R B Y Cerulean Cave B1F 52
Rhydon
Rhydon R B Y Evolve Rhyhorn 53
R B Y Cerulean Cave B1F 55
R B Y 62
Chansey
Chansey R B Y Cerulean Cave B1F 64
R B Y 56
Tangela
Tangela R B Y Route 21 28
Ditto
Ditto R B Y Cerulean Cave B1F 63
R B Y 60

Encounter Rate 30

The areas that use this rate are:

This pastebin contains the possible spreads available for locations with this encounter rate in Red, Green, and Blue, and this pastebin is for Yellow. I have also copied the lists here and here in case anything happens to the pastebins.

The Pokémon that can be found in this area are:

Rate 30 Encounters
Pokémon Games Locations Minimum Level
Nidoran♀
Nidoran♀ R B Y East and West 24
R B Y All areas 22
R B Y 14
Nidorina
Nidorina R B Y Evolve Nidoran♀ 25
R B Y 23
R B Y 16
R B Y Center and North 30
R B Y All areas
R B Y East and North 23
Nidoqueen
Nidoqueen R B Y Evolve Nidorina evolved from Nidoran♀ 25
R B Y 23
R B Y 16
R B Y Evolve Nidorina 30
R B Y 23
Nidoran♂
Nidoran♂ R B Y All areas 22
R B Y 14
R B Y East and West 24
Nidorino
Nidorino R B Y Evolve Nidoran♂ 23
R B Y 25
R B Y 16
R B Y All areas 30
R B Y Center and North
R B Y Center and West 23
Nidoking
Nidoking R B Y Evolve Nidorino evolved from Nidoran♂ 23
R B Y 25
R B Y 16
R B Y Evolve Nidorino 30
R B Y 23
Paras
Paras R B Y East and North 22
R B Y Center 27
Parasect
Parasect R B Y Evolve Paras 24
R B Y 28
R B Y Center and East 25
R B Y Center 27
Venonat
Venonat R B Y Center and West 22
Venomoth
Venomoth R B Y Evolve Venonat 31
R B Y North and West
Doduo
Doduo R B Y East and West 26
Dodrio
Dodrio R B Y Evolve Doduo 31
Exeggcute
Exeggcute R B Y All areas 23
R B Y 20
Exeggutor
Exeggutor R B Y Evolve Exeggcute 23
R B Y 20
Cubone
Cubone R B Y East, North, and West 16
Marowak
Marowak R B Y Evolve Cubone 28
R B Y East and West 24
Rhyhorn
Rhyhorn R B Y Center and North 25
R B Y 20
Rhydon
Rhydon R B Y Evolve Rhyhorn 42
Chansey
Chansey R B Y Center and North 23
R B Y Center and East 7
Tangela
Tangela R B Y Center and West 22
Kangaskhan
Kangaskhan R B Y East and West 25
R B Y North 28
Scyther
Scyther R B Y Center and East 23
R B Y East and North 15
Pinsir
Pinsir R B Y Center and East 23
R B Y North and West 15
Tauros
Tauros R B Y North and West 26
R B Y East and West 21

Other encounter types

Pokémon that can be obtained as a gift, as a static encounter, through purchase, through in-game trade, or through fishing can have any DV spread. The table below lists the Pokémon that can be obtained this way and the lowest possible level at which they can be obtained.

Pokémon Games Method Location Lowest level
Bulbasaur
Bulbasaur R B Y Gift Pallet Town 5
R B Y Cerulean City 10
Ivysaur
Ivysaur R B Y Evolve Bulbasaur N/A 16
Venusaur
Venusaur R B Y Evolve Ivysaur N/A 32
Charmander
Charmander R B Y Gift Pallet Town 5
R B Y Route 24 10
Venusaur
Charmeleon R B Y Evolve Charmander N/A 16
Ivysaur
Charizard R B Y Evolve Charmeleon N/A 36
Squirtle
Squirtle R B Y Gift Pallet Town 5
R B Y Vermilion City 10
Wartortle
Wartortle R B Y Evolve Squirtle N/A 16
Blastoise
Blastoise R B Y Evolve Wartortle N/A 36
Pikachu
Pikachu R B Y Gift Pallet Town 5
Raichu
Raichu R B Y Evolve a Pikachu traded from Yellow N/A 5
Nidoran♀
Nidoran♀ R B Y In-Game Trade Route 5-6 Underground Path (trade a level 2 Nidoran♂) 2
R B Y Route 5-6 Underground Path (trade a level 3 Nidoran♂) 3
Nidorina
Nidorina R B Y Purchase Celadon Game Corner 17
R B Y In-Game Trade Route 11 (trade a level 16 Nidorino) 16
Blastoise
Nidoqueen R B Y Evolve Nidorina N/A 16
Nidorino
Nidorino R B Y Purchase Celadon Game Corner 17
Nidoking
Nidoking R B Y Evolve Nidorino N/A 17
Clefairy
Clefairy R B Y Purchase Celadon Game Corner 8
R B Y 12
Clefable
Clefable R B Y Evolve Clefairy N/A 8
R B Y 12
Vulpix
Vulpix R B Y Purchase Celadon Game Corner 18
Ninetales
Ninetales R B Y Evolve Vulpix N/A 18
Wigglytuff
Wigglytuff R B Y Purchase Celadon Game Corner 22
Parasect
Parasect R B Y In-Game Trade Route 18 (trade a level 22 Tangela) 22
In-Game Trade Route 18 (trade a level 13 Tangela received in an in-game trade in Red or Blue, which is obtained by trading a level 13 Venonat caught in Yellow) 13
Dugtrio
Dugtrio R B Y In-Game Trade Route 11 (trade a level 50 Lickitung) 50
Route 11 (trade a level 15 Lickitung received in an in-game trade in Red or Blue, which is obtained by trading a level 15 Slowbro caught in Yellow) 15
Psyduck
Psyduck R B Y Fishing (Super Rod) Cerulean City, Routes 24 and 25, Safari Zone (all areas) 15
Dugtrio
Golduck R B Y Evolve Psyduck N/A 33
Poliwag
Poliwag R B Y Fishing (Good Rod) Any Fishing location 10
R B Y Fishing (Super Rod) Pallet Town, Viridian City, Route 22 15
R B Y Viridian City, Routes 22 and 23 5
Poliwhirl
Poliwhirl R B Y Evolve Poliwag N/A 25
R B Y Fishing (Super Rod) Celadon City, Route 10 23
R B Y Routes 22 and 23 15
Poliwrath
Poliwrath R B Y Evolve Poliwhirl N/A 23
R B Y 15
Abra
Abra R B Y Purchase Celadon Game Corner 9
R B Y 6
R B Y 15
Kadabra
Kadabra R B Y Evolve Abra N/A 16
Poliwrath
Alakazam R B Y Evolve Kadabra N/A 16
Machamp
Machamp R B Y In-Game Trade Route 5-6 Underground Path (trade a level 16 Cubone) 16
Tentacool
Tentacool R B Y Fishing (Super Rod) Pallet Town, Viridian City, Routes 12, 13, 17, and 18 5
R B Y Pallet Town, Vermilion City & Harbor, Cinnabar Island, Routes 11, 13, 17, 18, 19, 20, and 21
Tentacruel
Tentacruel R B Y Evolve Tentacool N/A 30
R B Y Fishing (Super Rod) Routes 19, 20, and 21 20
Slowpoke
Slowpoke R B Y Fishing (Super Rod) Celadon City, Route 10, Safari Zone (all areas) 15
Slowbro
Slowbro R B Y Evolve Slowpoke N/A 37
R B Y Fishing (Super Rod) Route 23, Cerulean Cave 1F and B1F 23
Farfetch'd
Farfetch'd R B Y In-Game Trade Vermilion City (trade a level 3 Spearow) 3
Vermilion City (trade a level 2 Spearow caught in Yellow) 2
Seel
Seel R B Y In-Game Trade Cinnabar Lab (trade a level 28 Ponyta) 28
Dewgong
Dewgong R B Y Evolve Slowpoke N/A 34
R B Y In-Game Trade Cinnabar Lab (trade a level 26 Growlithe) 26
Cinnabar Lab (trade a level 15 Growlithe caught in Red) 15
Muk
Muk R B Y In-Game Trade Cinnabar Lab (trade a level 28 Kangaskhan) 28
Cinnabar Lab (trade a level 25 Kangaskhan caught in Red or Blue) 25
Shellder
Shellder R B Y Fishing (Super Rod) Vermilion City & Harbor, Cinnabar Island, Routes 6, 11, 19, 20, and 21, Seafoam Islands B3F and B4F 15
R B Y Vermilion Harbor, Routes 17 and 18 10
Muk
Cloyster R B Y Evolve Shellder N/A 15
R B Y 10
Krabby
Krabby R B Y Fishing (Super Rod) Cerulean City, Vermilion City & Harbor, Fuchsia City, Routes 6, 11, 12, 13, 17, 18, 24, and 25, Safari Zone (all areas) 15
R B Y Routes 10 and 25, Seafoam Islands B3F and B4F 10
Kingler
Kingler R B Y Evolve Krabby N/A 28
R B Y Fishing (Super Rod) Route 23, Cerulean Cave 1F and B1F 23
R B Y Routes 10 and 25, Seafoam Islands B3F and B4F 15
Voltorb
Voltorb R B Y Static Power Plant (Six) 40
Electrode
Electrode R B Y Evolve Voltorb N/A 41
R B Y Static Power Plant (Two) 43
R B Y In-Game Trade Cinnabar Lab (trade a level 3 Raichu) 3
Hitmonlee
Hitmonlee R B Y Gift Fighting Dojo 30
Hitmonchan
Hitmonchan R B Y Gift Fighting Dojo 30
Lickitung
Lickitung R B Y In-Game Trade Route 18 (trade a level 23 Slowbro) 23
Route 18 (trade a level 15 Slowbro caught in Yellow) 15
Rhydon
Rhydon R B Y In-Game Trade Cinnabar Lab (trade a level 15 Golduck) 15
Tangela
Tangela R B Y In-Game Trade Cinnabar Lab (trade a level 22 Venonat) 22
Cinnabar Lab (trade a level 13 Venonat caught in Yellow) 13
Horsea
Horsea R B Y Fishing (Super Rod) Cinnabar Island, Routes 19, 20, and 21, Seafoam Islands B3F and B4F 15
R B Y Vermilion City, Routes 10, 11, 12, and 13 5
Seadra
Seadra R B Y Evolve Horsea N/A 32
R B Y Fishing (Super Rod) Route 23, Cerulean Cave 1F and B1F 23
R B Y Routes 12 and 13 20
Goldeen
Goldeen R B Y Fishing (Good Rod) Any Fishing location 10
R B Y Fishing (Super Rod) Cerulean City, Fuchsia City, Cinnabar Island, Routes 12, 13, 17, 18, 19, 20, 21, 22, 24, and 25, Seafoam Islands B3F and B4F 15
R B Y Cerulean City, Celadon City, Routes 6 and 24, Cerulean Cave 1F and B1F 5
Seaking
Seaking R B Y Evolve Horsea N/A 33
R B Y Fishing (Super Rod) Fuchsia City, Route 23, Cerulean Cave 1F and B1F 23
R B Y Cerulean City, Route 24, Cerulean Cave 1F and B1F 30
Staryu
Staryu R B Y Fishing (Super Rod) Cinnabar Island, Routes 19, 20, and 21, Seafoam Islands B3F and B4F 15
R B Y Pallet Town, Vermilion Harbor, Cinnabar Island, Routes 19, 20, and 21, Seafoam Islands B3F and B4F 5
Starmie
Starmie R B Y Evolve Staryu N/A 15
R B Y 5
Mr. Mime
Mr. Mime R B Y In-Game Trade Route 2 (trade a level 8 Abra) 8
R B Y Route 2 (trade a level 6 Abra) 6
R B Y Route 2 (trade a level 9 Clefairy) 9
Scyther
Scyther R B Y Purchase Celadon Game Corner 25
R B Y 30
Jynx
Jynx R B Y In-Game Trade Cerulean City (trade a level 23 Poliwhirl) 23
Cerulean City (trade a level 15 Poliwhirl caught in Yellow) 15
Pinsir
Pinsir R B Y Purchase Celadon Game Corner 20
R B Y 30
Magikarp
Magikarp R B Y Fishing (Old Rod) Any Fishing location 5
R B Y Purchase Route 4 5
R B Y Fishing (Super Rod) Fuchsia City, Routes 12, 13, 17, and 18 15
R B Y Fuchsia City, Safari Zone (all areas) 5
Gyarados
Gyarados R B Y Evolve Magikarp N/A 20
R B Y Fishing (Super Rod) Fuchsia City 15
Lapras
Lapras R B Y Gift Silph Co. 15
Eevee
Eevee R B Y Gift Celadon City 25
Vaporeon
Vaporeon R B Y Evolve Eevee N/A 25
Jolteon
Jolteon R B Y Evolve Eevee N/A 25
Flareon
Flareon R B Y Evolve Eevee N/A 25
Porygon
Porygon R B Y Purchase Celadon Game Corner 26
R B Y 18
Omanyte
Omanyte R B Y Gift Cinnabar Lab (Revive from Helix Fossil) 30
Omastar
Omastar R B Y Evolve Omanyte N/A 40
Kabuto
Kabuto R B Y Gift Cinnabar Lab (Revive from Dome Fossil) 30
Omastar
Kabutops R B Y Evolve Kabuto N/A 40
Aerodactyl
Aerodactyl R B Y Gift Cinnabar Lab (Revive from Old Amber) 30
Snorlax
Snorlax R B Y Static Routes 12 and 16 30
Articuno
Articuno R B Y Static Seafoam Islands B4F 50
Zapdos
Zapdos R B Y Static Power Plant 50
Moltres
Moltres R B Y Static Victory Road 2F 50
Dratini
Dratini R B Y Fishing (Super Rod) Safari Zone (all areas) 15
R B Y 10
R B Y Purchase Celadon Game Corner 18
R B Y 24
Dragonair
Dragonair R B Y Evolve Dratini N/A 30
R B Y Fishing (Super Rod) Safari Zone Center 15
Dragonite
Dragonite R B Y Evolve Dratini N/A 55
Mewtwo
Mewtwo R B Y Static Cerulean Cave B1F 50

Credits and sources