you have to get him after you get all 16 badges in johto and kanto and he should be there in cereuleaun city at cereuleaun cave.
mewtwo is in kanto it is in cerulean cave
Yes, Mewtwo, Latios and Latias will be in HeartGold and SoulSilver.
Cerulean Cave.
Cerulean Cave
Cerulean cave
Yes in the Cerulean Cave.
You can't,but you can get mewtwo!
In Ceurelean City Cave there is Mewtwo.
it is in cerulean cave at level 70
mewtwo
Nope!
after you get mewtwo you just carry on with your journey its not a Pokemon necessary to advance in the storyAnswer: You can do whatever you want.