The Cerulean Cave
sadly,no
You can't catch it at Pokemon Pearl, you'll have to Transfer it from LeafGreen/FireRed or trade it with SoulSilver/HeartGold
no because there isn't a mew-three just mew and mew-two sorry
The only legitimate way to obtain Celebi and Mew is through a Nintendo event. In FireRed and LeafGreen you will need an event-only item to travel to the last two islands where you can catch those Pokemon
The only legit way to obtain Mew is through a Nintendo event. In FireRed and LeafGreen you will need an event-only item to travel to the last two islands where you can catch that pokémon.
Mewtwo, yes, if you have a FireRed or LeafGreen with Mewtwo.
You can Continue training or visit the Sevii islands
Mew two sould be at the end of the cave in cerulean city after you beat the elite 4.
You cannot catch Mew in "Pokémon Ruby."or you can get mew-two in fire red or leaf green.
Capture Entei/Raikou/Suicune.
Mt.Moon
You can't catch Mewtwo in-game in Pokemon Diamond.