Mewthree is fake, REPEAT MEWTHREE IS FAKE >_<
There is no such Pokemon as Mewthree it is a hacked Pokemon, so consequently it cannot be obtained in Pokemon Diamond.
No, there is no legitimate Action Replay code for Mewthree for Pokemon Diamond.
No. Mewthree is a fake Pokemon,sorry if Pokemon had a mewthree that would be awesome though.
Mewthree cannot be caught in Pokemon Diamond, even with an Action Replay, because it does not exist in the game's data.
I'm sorry but mewthree isn't real i now you got it from youtube
there is no such thing as mewthree and if there was it wouldn't be in the games.
you can only get mewthree in leafgreen firered, but you could migrate... mewthree is a fake Pokemon is it worth the chance of ruining you game ?
It's actually a Pokemon from a hacked game, Pokemon chaos black. You won't get it on diamond.
i don't think there is even a mewthree. i think it only goes up to mew two.
Mewthree is just a fan hack. It is not a real pokemon that you can encounter or catch, even with an AR code, in a legitimate game.
i don't now how to in diamond but................. there is this game called Pokemon chaos black it is a hacked version of leaf green and fire red you can get mewthree and mewthree x on it WITHOUT AN AR CODE!!!!!!!!!!!!