Nintendo and The Pokemon Company are giving out both of the Mewtwonite X and Mewtwonite Y megastones for Pokemon Sun and Moon with the mystery gift option.

You can obtain these two stone by entering a curtain code which will allow Pokemon Sun and Moon players to evolve Mewtwo into either a Mewtwonite X or Mewtwonite Y when the creature is handed one of the Mega Stones. This will allow Mewtwo to Mega Evolve two different ways during battle.

Here’s the Mewtwo Mega Stones code: M2DESCENT

If you have never entered a code before, you will need to follow these steps:

• Select Mystery Gift on the main menu.
• Select Receive Gift.
• Select Get with Code/Password, then Yes, and then Yes again to connect to the Internet.
• Enter your code.
• Watch as you receive Mega Stones.
• Speak to the deliveryman in any Pokemon Center to pick up your Mega Stones.
• Be sure to save your game.