go to cerulean cave after you beat the elite four and help celio fix his machine on those islands. you go into cerulean cave work your way through that and mewtwo is in there
Have it traded to you from a Firered/Leafgreen.
get every Pokemon in the game then go to mystery cave and catch it
Mew Mew2 Zapdos Moltres and Articuno
Mew 3 doesn't exist and the only Mew-anything you can find is mew2 at the back of Cerulean Cave.
after you beat the Pokemon league go back to where you battled misty and to your left there is a Pokemon ranger guarding a cave then you talk to him and he will let you in
get the ruby and the Sapphire gems from 4and 6 islands . the go to ceroolien cave.you can find mew2 in there.
the Pokemon are pigey, mew2 first of all there are more than that and second pigey is not lengendary
MewTwo can be found and caught in Cerulean Cave. Hint save before you battle him and if you fail you can try again.
well you passed it when the credits go up and you can go get the legendary mew2 and the rest is the bonus storyline that's it
you can't only mew2 there are a bunch of myths but they aren't true
You cant find it in Firered only leafgreen.
mew2 is the rarest