1. Bulbasaur
Type: Grass/Poison
Location: One of three Pokémon you start with, only one found in Pallet Town for both versions.

2. Ivysaur
Type: Grass/Poison
Location: Evolves from Bulbasaur at level 16

3. Venusaur
Type: Grass/Poison
Location: Evolves from Ivysaur at level 32.

4. Charmander
Type: Fire
Location: One of three starter Pokémon, only one found in Pallet Town for both versions.

5. Charmeleon
Type: Fire
Location: Evolves from Charmander at level 16

6. Charizard
Type: Fire/Flying
Location: Evolves from Charmeleon at level 36 .

7. Squirtle
Type: Water.
Location: One of three Pokémon you start with Pallet Town.

8. Wartortle
Type: Water
Location: Evolves from Squirtle at level 16

9. Blastoise
Type: Water
Location: Evolves from Wartortle at level 36

10. Caterpie
Type: Bug
Location: Look in Route 2, 24, 25 or in Virdian Forest. A few found in the Red version and many found in the Blue version.

11. Metapod
Type: Bug
Location: Evolves from Caterpie at level 7 or look in Route 24 or 25 or in Virdian Forest. A few found in the Red version and many found in the Blue.

12. Butterfree
Type: Bug/Flying
Location: Evolves from Metapod at level 10.

13. Weedle
Type: Bug/Poison
Location: Look in Route 2, 24, 25 or in Virdian Forest. Many found in the Red version and a few in the Blue version.

14. Kakuna
Type: Bug/Poison
Location: Evolves from Weedle at level 7, or look in Route 24, 25 or in Virdian Forest. Many found in the Red version and       a few in Blue version.

15. Beedrill
Type: Bug/Poison
Location: Evolves from Kakuna at level 10.

16. Pidgey
Type: Normal/Flying
Location: It’s almost everywhere, but to have a great chance, look at Route 1 & 2. Also check on Route 5 & 6. Many of them found in both of the versions.

17. Pidgeotto
Type: Normal/Flying
Location: Evolves from Pidgey at level 18 or find at route 14, 15 or 21.

18. Pidgeott
Type: Normal/Flying
Location: Evolves from Pidgeotto at level 36.

19. Rattata
Type: Normal
Location: It’s almost everywhere, but to have a great chance, look at Route 1. In Viridian City and Route 2, 4, 9 & 10 also. Many found in both versions of the game.

20. Raticate
Type: Normal
Location: Evolves from Rattata at level 20 or find on route 18, 17, 16 or 21.

21. Spearow
Type: Flying/Normal
Location: Quite often seen, but look on Route 3 for the best chance. Also found in Viridian City and Route 2, 4, 9, 10 & 11. Many of them found in both versions.

22. Fearow
Type: Flying/Normal
Location: Evolves from Spearow at level 20 or find on route 23, 18 or 17.

23. Ekans
Type: Poison
Location: Often seen, but look at Route 4 for good chances. Also check around Routes 9, 10, 11. Many found in the Red version and none found in the Blue.

24. Arbok
Type: Poison
Location: Evolves from Ekans at level 22 or look at route 23 or the Unknown Dungeon.

25. Pikachu
Type: Electric
Location: Look in Virdian Forest or at the Power Plant.

26. Raichu
Type: Electric
Location: Evolves from Pikachu with the Thunder Stone or look in the Power Plant or the Unknown Dungeon.

27. Sandshrew
Type: Ground
Location: Check Route 4 for best results. Also check around Routes 9, 10 & 11. None found in the Red version and many found in the Blue.

28. Sandslash
Type: Ground
Location: Evolves from Sandshrew at level 22 or look at Route 23 or the Unknown Dungeon.

29. Nidoran Female
Type: Poison
Location: Look at Route 22 or the Safari Zone. Also found in Viridian City and Route 22.

30. Nidorina
Type: Poison
Location: Evolves from Nidoran Female at level 16 or look at the Safari Zone for best results.

31. Nidoqueen
Type: Ground/Poison
Location: Evolves from Nidorina with the Moon Stone.

32. Nidoran Male
Type: Poison
Location: Look at Route 22 or the Safari Zone. Also check out Viridian City.

33. Nidorino
Type: Poison
Location: Evolves from Nidoran Male at level 16 or look at the Safari Zone for best results.

34. Nidoking
Type: Ground/Poison
Location: Evolves from Nidorino with the Moon Stone.

35. Clefairy
Type: Normal
Location: Look at Mt. Moon for best results. A few found in both versions.

36. Clefable
Type: Normal
Location: Evolves from Clefairy with the Moon Stone.

37. Vulpix
Type: Fire
Location: Look at Route 7 or 8 or at the Pokémon Mansion at Cinnabar Island.

38. Ninetales
Type: Fire
iLocation: Evolves from Vulpix with the Fire Stone.

39. Jigglypuff
Type: Normal
Location: Route 3 only. A few found in both versions.

40. Wigglytuff
Type: Normal
Location: Evolves from Jigglypuff with the Moon Stone or find at the Unknown Dungeon.

41. Zubat
Type: Poison/Flying
Location: Many places, but check Mt. Moon for best results. Also check in The Rock Tunnel. Many found in both versions.

42. Golbat
Type: Poison/Flying
Location: Evolves from Zubat at level 22 or check Seafoam Island, Victory Road or Route 23.

43. Oddish
Type: Grass/Poison
Location: Check Routes 12, 13, 14, 15, 24, 25, 5, 6, or 7. A found few in the Red version and none found in the Blue.

44. Gloom
Type: Grass/Poison
Location: Evolves from Oddish at level 21 or look at Route 12, 13, 14 or 15.

45. Vileplume
Type: Grass/Poison
Location: Evolves from Gloom with the Leaf Stone.

46. Paras
Type: Bug/Grass
Location: Check Mt. Moon or the Safari Zone. A few found in both versions.

47. Parasect
Type: Bug/Grass
Location: Evolves from Paras at level 24 or check the Unknown Dungeon or the Safari Zone.

48. Venonat
Type: Bug/Poison
Location: Check Route 12, 13, 14 or 15 or the Safari Zone.

49. Venomoth
Type: Bug/Poison
Locationt: Evolves from Venonat at level 31 or check the Unknown Dungeon, the Safari Zone or Victory Road.

50. Diglett
Type: Ground
Location: Diglett’s Cave only. Many found in both versions.

51. Dugtrio
Type: Ground
Location: Evolves from Diglett at level 26 or check Diglett’s Cave. A few found in both versions.

52. Meowth
Type: Normal
Location: Route 5, 6, 7 or 8. None found in the Red version and a few in the Blue version.

53. Persian
Type: Normal
Location: Evolves from Meowth at level 28.

54. Psyduck
Type: Water
Location: Safari Zone or Seafoam Island.

55. Golduck
Type: Water
Location: Evolves from Psyduck at level 33 or check Seafoam Island.

56. Mankey
Type: Fighting
Location: Route 5, 6, 7 or 8. A few in the Red version and none in the Blue.

57. Primeape
Type: Fighting
Location: Evolves from Mankey at level 28.

58. Growlithe
Type: Fire
Location: Routes 7 or 8 or the Pokémon Mansion.

59. Arcanine
Type: Fire
Location: Evolves from Growlithe with the Fire Stone.

60. Poliwag
Type: Water
Location: Fish in Pallet Town for best results

61. Poliwhirl
Type: Water
Location: Fish on Route 9 for best results.

62. Poliwrath
Type: Water/Fighting
Location: Evolves from Poliwhirl with the Water Stone.

63. Abra
Type: Psychic
Location: Route 24 or 25, check the Exchange Corner of Celadon City. A few found in both versions.

64. Kadabra
Type: Psychic
Location: Evolves from Abra at level 16 or find at the Unknown Dungeon.

65. Alakazam
Type: Psychic
Location: Trade Kadabra.

66. Machop
Type: Fighting
Location: Check Rock Tunnel or Victory Road. A few found in both versions of the game.

67. Machoke
Type: Fighting
Location: Evolves from Machop at level 28 or look on Victory Road.

68. Machamp
Type: Fighting
Location: Trade Machoke.

69. Bellsprout
Type: Poison/Grass
Location: Many places but check route 5, 6 or 7 for best results. Also check in Route 24 & 25. None found in the Red version and a few found in the Blue.

70. Weepinbell
Type: Poison/Grass
Location: Evolves from Bellsprout at level 21 or look on route 12, 13, 14 or 15.

71. Victreebel
Type: Poison/Grass
Location: Evolves from Weepinbell with the Leaf Stone.

72. Tentacool
Type: Water/Poison
Location: Fish in Pallet Town or check Route 18 or 19.

73. Tentacruel
Type: Water/Poison
Location: Evolves from Tentacool at level 30.

74. Geodude
Type: Rock/Ground
Location: Check Mt. Moon, Rock Tunnel or Victory Road. A few found in both versions.

75. Graveler
Type: Rock/Ground
Location: Evolves from Geodude at level 25 or look on Victory Road.

76. Golem
Type: Rock/Ground
Location: Evolves from Graveler by trading.

77. Ponyta
Type: Fire
Location: Look at Cinnabar Island’s mansion.

78. Rapidash
Type: Fire
Location: Evolves from Ponyta at level 40 or look at the Unknown Dungeon.

79. Slowpoke
Type: Water/Psychic
Location: Many places, but check the Seafoam Island for best results.

80. Slowbro
Type: Water/Psychic
Location: Check the Seafoam Island or evolve from Slowpoke at level 37.

81. Magnemite
Type: Electric
Location: Check the Power Plant or Unknown Dungeon.

82. Magneton
Type: Electric
Location: Evolves from Magnemite at level 30 or check the Power Plant or Unknown Dungeon.

83. Farfetch’d
Type: Normal/Flying
Location: Trade a Pidgey or Spearow in Vermilion City. Check in the S.S. Anne too.

84. Doduo
Type: Normal/Flying
Location: Check route 18, 17 or 16 for best results.

85. Dodrio
Type: Normal/Flying
Location: Evolves from Doduo at level 31 or check the Unknown Dungeon.

86. Seel
Type: Water
Location: Check Seafoam Island.

87. Dewgong
Type: Water/Ice
Location: Evolves from Seel at level 34 or check Seafoam Island.

88. Grimer
Type: Poison
Location: Check the mansion at Cinnabar Island.

89. Muk
Type: Poison
Location: Evolves from Grimer at level 38 or check Cinnabar Island’s Mansion or the Unknown Dungeon.

90. Shellder
Type: Water
Location: Check Seafoam Island for best results.

91. Cloyster
Type: Water/Ice
Location: Evolves from Shellder with the Water Stone.

92. Gastly
Type: Ghost/Poison
Location: Check Pokémon Tower.

93. Haunter
Type: Ghost/Poison
Location: Evolves from Gastly at level 25 or check the Pokémon Tower.

94. Gengar
Type: Ghost/Poison
Location: Evolves from Haunter by trade.

95. Onix
Type: Rock/Ground
Location: Check The Rock Tunnel or The Unknown Dungeon. A few found in both versions.

96. Drowzee
Type: Psychic
Location: Check Route 11. A few found in both versions.

97. Hypno
Type: Psychic
Location: Evolves from Drowzee at level 26 or check the Unknown Dungeon.

98. Krabby
Type: Water
Location: Fish at many areas or look in the Seafoam Island.

99. Kingler
Type: Water
Location: Check Unknown Dungeon or evolves from Krabby at level 28.

100. Voltorb
Type: Electric
Location: Check Routes 9 & 10 or the Power Plant. Many found in both versions of the game.

101. Electrode
Type: Electric
Location: Evolves from Voltorb at level 30 or check the Power Plant or Unknown Dungeon.

102. Exeggcute
Type: Grass/Psychic
Location: Check the Safari Zone.

103. Exeggutor
Type: Grass/Psychic
Location: Evolves from Exeggcute with the Leaf Stone.

104. Cubone
Type: Ground
Location: Check Pokémon Tower.

105. Marowak
Type: Ground
Location: Evolves from Cubone at level 28. Also found in The Unknown Dungeon.

106. Hitmonlee
Type: Fighting
Location: One of your two choices in the Fighting Dogo.

107. Hitmonchan
Type: Fighting
Location: One of your two choices in the Fighting Dogo.

108. Lickitung
Type: Normal
Location: Check Route 18.

109. Koffing
Type: Poison
Location: Look in the Pokémon Mansion.

110. Weezing
Type: Poison
Location: Evolves from Koffing at level 35 or check the Pokémon Mansion.

111. Rhyhorn
Type: Ground/Rock
Location Check the Safari Zone or The Unknown Dungeon.

112. Rhydon
Type: Ground/Rock
Location: Evolves from Rhyhorn at level 42 or check the Unknown Dungeon.

113. Chansey
Type: Normal
Location: Check around the Safari Zone and the Unknown Dungeon.

114. Tangela
Type: Grass
Location: Check along Route 21.

115. Kangaskhan
Type: Normal
Location: Check Safari Zone.

116. Horsea
Type: Water
Location: Check Seafoam Island.

117. Seadra
Type: Water
Location: Check Seafoam Island.

118. Goldeen
Type: Water
Location: Fish almost anywhere.

119. Seaking
Type: Water
Location: Fish in Fuschia City or evolves from Goldeen at level 33.

120. Staryu
Type: Water
Location: Check Route 20 or fish in Cinnabar Island.

121. Starmie
Type: Water
Location: Evolves from Staryu with the Water Stone.

122. Mr. Mime
Type: Psychic
Location: Trade with somebody on Route 2. Traded in both versions.

123. Scyther
Type: Bug/Flying
Location: Check the Safari Zone.

124. Jynx
Type: Ice/Psychic
Location: Trade with somebody in Cerulean City. Traded in both versions.

125. Electabuzz
Type: Electric
Location: Check the Power Plant.

126. Magmar
Type: Fire
Location: Check the Pokémon mansion.

127. Pinsir
Type: Bug
Location: Check Safari Zone.

128. Tauros
Type: Normal
Location: Check Safari Zone or Route 18.

129. Magikarp
Type: Water
Location: Buy it from a man on Route 3 or fish many other places.

130. Gyrados
Type: Water/Flying
Location: Evolves from Magikarp at level 20.

131. Lapras
Type: Water/Ice
Location: Talk to a man in the Silph building after defeating Gary.

132. Ditto
Type: Normal
Location: Check Route 13, 14, 15, 23 or The Unknown Dungeon.

133. Eevee
Type: Normal
Location: Talk to a man in the back of the mansion in Celadon City.

134. Vaporeon
Type: Water
Location: Evolves from Eevee with the Water Stone.

135. Jolteon
Type: Electric
Location: Evolves from Eevee with the Thunder Stone.

136. Flareon
Type: Fire
Location: Evolves from Eevee with the Fire Stone.

137. Porygon
Type: Normal
Location: Get at the exchange center in Celadon City.

138. Omanyte
Type: Rock/Water
Location: Give the Helix fossil to the Pokémon Lab.

139. Omastar
Type: Rock/Water
Location: Evolves from Omanyte at level 40.

140. Kabuto
Type: Rock/Water
Location: Give the Dome Fossil to the Pokémon Lab.

141. Kabutops
Type: Rock/Water
Location: Evolves from Kabuto at level 40.

142. Aerodactyl
Type: Rock/Flying
Location: Give the Old Amber to the Pokémon Lab.

143. Snorlax
Type: Normal
Location: When you wake it up with the Pokéflute, catch it.

144. Articuno
Type: Ice/Flying
Location: Catch at the Seafoam Island.

145. Zapdos
Type: Electric/Flying
Location: Catch at the Power Plant.

146. Moltres
Type: Fire/Flying
Location: Catch at Victory Road.

147. Dratini
Type: Dragon
Location: Get at the exchange corner in Celadon City or fish at the Safari Zone.

148. Dragonair
Type: Dragon
Location: Evolves from Dratini at level 30.

149. Dragonite
Type: Dragon
Location: Evolves from Dragonair at level 55.

150. Mewtwo
Type: Psychic
Location: Catch him at the Unknown Dungeon.  

These Pokemons are exclusive to each cart so you have to trade for
them to complete your collection.