it depends on what game. :(
You can't get Mewtwo in Pokemon Pearl.
yes,mewtwo is in Pokemon dimond/pearl
how do you catch a mewtwo on Pokemon platinum
it is not in an episode it is in Pokemon the movie mewtwo strikes back
can only get mewtwo through trade in Pokemon emerald
No you can't catch Mewtwo in Pokemon silver, you must trade it from Pokemon yellow.
the most powerfull Pokemon is mewtwo but people think its areceus when its not on Pokemon explores of time it is darkrai on darkness it is mewtwo on platinum it is mewtwo on dimond it is mewtwo on pearl it is mewtwo on blue rescue team it is mewtwo on red rescue team it is mewtwo on chores black it is mewtwo on ruby it is once again mewtwo i could go on for ever but i am trieng to make my point :)
There is no "Mewthree". Mewtwo does not evolve from or into another Pokemon because it is a legendary Pokemon.
mewtwo can not evolve because he is one of those Pokemon that do not evolve.
Mewtwo's Pokemon ID number is #150 in the national Pokedex.
You can find Mewtwo in the Cerulean Cave.
theres a golden mewtwo?