Pallet Town: Charmander, Rattata, Nidoran (M), and Poliwag
Viridan Forest: Weedle, Pidgey, and Pikachu
Pewter City: Spearow, Jigglypuff, Ekans, and Magikarp
Cerulean City: Oddish, Mankey, Jynx, and Abra
Vermilion City Seaside: Shellder, Krabby, Ekans, and Farfetch'd
Rock Mountain: Voltorbe, Diglett, and MrMime
Lavender Town: Gastly, Magnemite, Cubone, Electabuzz, and Zapdos
Cycling Road: Spearow, Doduo, Lickitung, and Snorlax
Safari Zone: Paras, Rhyhorn, and Chansey
Seafoam Islands: Horsea, Staryu, Seel, and Articuno
Cinnabar Island: Ponyta, Growlithe, Omanyte, and Kabuto
Indigo Plateau: Machop, Onix, and Ditto
Viridan City: Squirtle, Nidoran (M), and Bulbasaur
Viridian Forest: Caterpie, Rattata, and Pikachu
Mt Moon: Zubat, Paras, and Clefairy
Cerulean City: Bellsprout, Meowth, Jynx, and Abra
Vermilion City Streets: Shellder, Krabby, Farfetch'd, and Sandshrew
Rock Mountain: Diglet, Voltorbe, and MrMime
Celadon City: Mankey, Meowth, Eevee, and Porygon
Fuchsia City: Magikarp, Goldeen, Kangashan, and Exeggcute
Safari Zone: Doduo, Nidoran (F), and Chansey
Saffron City: Ekans, Sandshrew, Hitmonchan, and Hitmonlee
Cinnabar Island: Ponyta, Koffing, Aerodactyl, and Magmar
Indingo Plateau: Geodude, Ditto, Moltres, and Mewtwo
To get Mew do the following (TIP: It's easier on the blue board):
1)Get to the Indigo Plateau. Stay there, don't change levels.
2)Beat the Mewtwo bonus level 3 times.
3)Catch as many pokèmon as you can.
4)Try and keep your pinball a Ultraball/Masterball...
Keep catching pokèmon and eventaully Mew will show up. Keep hitting her, it takes about 50 times to catch her.