There is no way to obtain Mewthree since it doesn't exist.
There is no such thing as a Mewthree, so there isn't an action replay code for it.
you cant you have to action replay it
No, there is no legitimate Action Replay code for Mewthree for Pokemon Diamond.
Mewthree is a glitch which appears to be a new type of mew but it makes a moltres cry, has moltreses pokedex, and moltreses sprite. He isn't avaible in platnium, u must capture him in a game called Pokemon caos black.
you cant
There is no such thing as a Mewthree, so there isn't an action replay code for it.
No. Mewthree is a fake Pokemon,sorry if Pokemon had a mewthree that would be awesome though.
use action replay
Mewthree cannot be caught in Pokemon Pearl. It does not exist in the game's data anywhere.
there is no way. cheating is the only way
Mewthree cannot be caught in Pokemon Diamond, even with an Action Replay, because it does not exist in the game's data.
you cant you have to action replay it
theres no such thing!
No, there is no legitimate Action Replay code for Mewthree for Pokemon Diamond.
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There is no such Pokemon as Mewthree it is a hacked Pokemon, so consequently it cannot be obtained in Pokemon Diamond.
You can only get Mewthree by hacking it into the Pokemon Pearl ROM. It cannot be obtained legitimately or by using the Action Replay.