In Cerulean cave in Pokemon FireRed and leafgreen
Mewtwo is found in cerulean cave.
Mewtwo can be found in Mahogany Town where Pryce is.
Mewtwo is made by scientists with DNA from Mew. Mewtwo wants to be the one and only him, so he wants to find Mew and destroy him, so they will only know Mewtwo from then on. This whole story is found in the first Pokémon movie: "Mewtwo vs. Mew"
No. The only Mewtwo found in Kanto dwells in Cerulean Cave, and is at Level 70.
You can catch Mewtwo in Pokemon HGSS after you have beaten all Kanto gym leaders then you may fight or catch it at the end of Cerulean Cave, Mewtwo is found at Lv.70
Mewtwo can be found in the Cerulean Cave in HeartGold.
mew is an event only Pokemon and mewtwo is in cerulean cave at lvl. 70
Mewtwo is not found in the wild in Pokémon Crystal, or Gold or Silver. You will need to trade one over from Red, Blue, or Yellow.
You can find mewtwo in cerulean cave after you beat the elite four anf found both jewels for celio on one island
In Pokémon SoulSilver, Mewtwo can be found in the Cerulean Cave but you will not gain access to it until you have defeated Blue.
That would be Mewtwo which can be found at the end of cerulean cave.
in any game mew can be found in a glitch,in emerald you need the event item old sea map that will allow you to go to faraway island and mewtwo can be found in kanto in cerulean cave