Well, when you beat the game you can register the sign that appears in the intro (mewtwos sign. Hope i helped a little!
It depends on your Pokemon's level. If it is in the 50-60 range, then train near Indigo Plateau.
beat the E4, but mewtwos in that cave. articunos in seafoam cave, east of cannivare island(the one with the fire gym)
grass and poison moves like the drain moves and the powder moves.
it moves
there is none.
Western Cave
No, but it's a sign that you need a hobby.
You have to beat elite 4 to get into Mewtwos cave
give it to celio and then mewtwos cave will be unlocked
On firered, you need to beat every trainer in the game and have rock smash and strengh
buy it in the wigglytuff friend areas(after beating rayquaza)
in sky you have to go in spinda cafe and wait until mewtwos challenge arrives
theres a pretty good chance most people find there dog by mewtwos cave (cerulean)
i have 54 mews and 2 mewtwos and 1 mewthree x
Start - ConfusionStart - Disable11 - Barrier22 - Mist33 - Swift44 - Recover55 - Safeguard66 - Psychic77 - Psych Up88 - Future Sight99 - Amnesiamoves in bold are those which Mewtwo will have when battling it at Cerulean Cave.If you would like to learn more about Mewtwo, copy and paste the following link:
get blue version, name self, DxDyDzD, do missingno glitch. there will be mewtwos (yes plural) L. 180-185