"Pokemon Sun and Moon" Mewtwo's mega stones are now available in the game. The Mewtwo mega stones can be used to evolve the powerful Pokemon to either Mewtwonite X or Mewtwonite Y.

The first thing that trainers will have to do to get Mewtwonite X or Mewtwonite Y in "Pokemon Sun and Moon" is to have their base form, Mewtwo. The powerful Pokemon is not available in the wild in both Pokemon games.

To get Mewtwo in "Pokemon Sun and Moon" using the Pokemon Bank is the only way. A trainer must first have Mewtwo in the earlier iterations of the game. Use the Pokemon Bank via Poke Transporter to transfer Mewtwo in "Pokemon Sun and Moon."

Transferring a Pokemon via the Pokemon Bank will not allow the items to be transferred in the process. Though these items may be lost, this is the only way to get Mewtwo in the game and to evolve it to Mega Mewtwo X or Mega Mewtwo Y.

To get Mega Mewtwo X or Mega Mewtwo Y in "Pokemon Sun and Moon," go to the games' main menu and select Mystery Gift. Thereafter, select Receive gift.

Select get with code or password, click Yes. After which, click Yes again for the game to connect to the internet. Then enter the code M2DESCENT. This is a global code so it can be used in any region.

Wait to receive the Mewtwo mega stone. Go to any Pokemon Center and speak to the delivery man to pick up the mega stone. After picking up the Mewtwo mega stone, save the game.

There have been no details as to when will the "Pokemon Sun and Moon" Mewtwo mega stone promo will last. For trainers who wants to evolve the powerful Pokemon to Mewtwonite X or Mewtwonite Y, getting it done now is highly recommended as the promo is for a limited time only.