Pokemon 121-150 Starmie to Mewtwo
| Name | Type | Area | Evolution | Attacks | Strengths and weaknesses | Evaluation |
| Starmie | Water/Psychic | Evolved from Staryu | No Evolution | See Staryu | Strong against fire weak against plant | *** |
| Mr.Mime | Psychic | Trade with person in house near
the viridian end of diglett cave |
No Evolution | Confusion, barrier, Light screen, Double slap, meditate, substitute | N/A | ** |
| Scyther | Insect/Flying | Safari Zone Red only | No Evolution | Quick attack, Leer, Focus energy, Double team , slash, swords dance, agility | Strong against plant weak against Electric | **** |
| Jynx | Ice/Psychic | Trade in house in Cerulean | No Evolution | Pound, Lovely Kiss, Sing, Double slap, Ice punch , Meditate, Blizzard | Strong against fire weak against ground | ** |
| Electrabuzz | Electric | Power plant Red only | No Evolution | Quick attack, Leer, Thundershock, Screech, Thunderpunch, Light screen, Thunder | Strong against flying weak against ground | *** |
| Magmar | Fire | Pokemon Mansion Blue Only | No Evolution | Ember, Leer, Confuse ray, Fire Punch, Smoke screen, Smog, Flame thrower | Strong against plant weak against water | *** |
| Pinsir | Insect | Safari Zone Blue Only | No Evolution | Vicegrip, Seismic toss, Guillotine, focus energy , harden, slash, swords dance | Strong against plant weak against flying | **** |
| Tauros | Normal | Normal | No Evolution | Tackle, Stomp, Tail whip, Leer, rage, take down | N/A | ** |
| Magikarp | Water | Fish any where you will find it | Level 20 | splash , tackle | Not strong against anything | * |
| Gyrados | Water/Flying | evolved from Magikarp | No Evolution | Bite, Dragon rage, Leer, Hydro pump, Hyper beam | Strong against fire weak against plant | **** |
| Lapras | Water/Ice | Given to you in sliph co by man next to Gary | No Evolution | Water gun, Growl, Sing, Mist, Body slam, Confuse ray, Ice beam, hydro pump | Strong against fire weak against plant | **** |
| Ditto | Normal | Routes 13,14,15 | No Evolution | Transform | N/A | ***** |
| Eevee | Normal | Take back door into mansion in celadon city and go to room on top floor | Use water stone, thunder stone or fire stone | Tackle, Sand attack, quick attack, Tail whip, Bite, Take down | N/A | *** |
| Vaporeon | Water | 1 of 3 of Eevee's evolutions | No Evolution | Tackle, Sand attack, quick attack, water gun, tail whip, bite, acid armour, haze, mist, hydro pump | Strong against fire weak against plant | **** |
| Jolteon | Electric | 1 of 3 of Eevee's evolutions | No Evolution | Tackle, Sand attack, Quick attack, Thudershock, Tail whip, Thunderwave, Double kick, Agility, Pin Missile, Thunder | Strong against flying weak against ground | **** |
| Flareon | Fire | 1 of 3 of Eevee's evolutions | No Evolution | Tackle,Sand attack,quick attack, ember, tail whip, bite , leer, fire spin, rage, flamethrower | Strong against fire weak against plant | **** |
| Porygon | Normal | Exchange for a lot of coins in game corner | No Evolution | Tackle, Sharpen, Conversion, Psybeam, Harden, Agility, Tri attack | N/A | *** |
| Omanyte | Rock/Water | Take Helix fossil to scientist in lab on cinnibar | Level 40 | Water gun, Withdraw, Horn attack, Leer, Spike cannon, Hydro Pump | Strong against fire weak against plant | *** |
| Omastar | Rock/Water | Evolved from Omanyte | No Evolution | See Omanyte | Strong against fire weak against plant | *** |
| Kabuto | Rock/Water | Take Dome Fossil to scientist in lab on cinnibar | Level 40 | Scratch, Harden,Absorb,Slash, Leer, Hydro pump | Strong against fire weak against plant | ** |
| Kabutops | Rock/Water | Evolved from Kabuto | No Evolution | See Kabuto | Strong against fire weak against plant | *** |
| Aerodactyl | Rock/Flying | Take Ancient amber to scientist in lab on cinnibar | No Evolution | Wing attack, Agility, supersonic, bite, take down, hyper beam | Strong against electric weak against water | **** |
| Snorlax | Normal | It's that fat thing sleeping in the road just be sure you catch it you only get 1 go | No Evolution | Headbutt, Amnesia, rest, body slam, harden, double edge, hyper beam | N/A | *** |
| Articuno | Ice/Flying | Seafoam island | No Evolution | peck, Ice beam, Blizzard, Agility, mist | Strong against fire weak against ground | **** |
| Zapdos | Electric/Flying | Power plant | No Evolution | Thundershock, Drill peck, Thunder, Agility, Light screen | Strong aginst water weak against ground | **** |
| Moltres | Fire/Flying | Victory Road | No Evolution | Peck, Fire spin, Leer, Agility, Sky attack | Strong against plants weak against water | **** |
| Dratini | Dragon | Use super rod in Safari zone it's tough to find | Level 30 | Wrap, Leer, Thuderwave, Agility, Salm, Dragon rage, hyper beam | Strong against fire weak against plant | *** |
| Dragonair | Dragon | evolved from Dratini | Level 55 | See Dratini | Strong against fire weak against plant | **** |
| Dragonite | Dragon/Flying | Evolved from Dragonair | No Evolution | See Dratini | Strong against fire weak against plant | **** |
| Mewtwo | Psychic | Lowest level in poweful pokemon cave near Cerulean city | No Evolution | Confusion, Disable, Swift, Barrier, Psychic, Recover, Mist, Amnesia | N/A | **** |