You have to trade it in from Generation III.
You can't get Mewtwo in Pokemon Pearl.
yes,mewtwo is in Pokemon dimond/pearl
Trading
NO!!
Pokemon pearl ds card is smaller then a action replay
you tern on your ds and tap Pokemon pearl
NO!this wise guy is wrong! you can find mewtwo on Pokemon pearl. in pal park after you defeat the elite four and you have to migrate it from firered or leafgreen.
Mewtwo is not obtainable in Pokemon DPPt. Trade it over from another game or AR.
No, you have to transfer it from the older DS Pokemon games.
You can't catch Mewtwo in Pokemon Diamond and pearl and also platinum. But you can catch Mewtwo in heartgold and soul silver
you can not get mewtwo in Pokemon ruby,sapphire,leafgreen or fire you can only get him on pearl ,dimond and platinum
It depends on which version you are talking about.* Pokemon Red, Blue, and Yellow: After completing all eight gyms and earning all eight badges, and defeated the Elite Four, there is a cave in which you can surf around the gate and enter in Cerulean City. The guy who blocks the entrance has either moved aside, or disappeared. There is a labyrinth, with Pokemon ranging around the level 50s and 60s. Pokemon Ruby, Sapphire, and Emerald: You cannot get a mewtwo unless you have a Game Shark or an Action Replay, or any other kind of cheat. Pokemon Diamond and Pearl: If you have a mewtwo in Pokemon Ruby, Sapphire, or Emerald, you can first put the mewtwo in the computer. Then, put it in the bottom slot of a DS or DS Lite, and put Pokemon Diamond or Pearl in the top DS slot. Go to Pal Park (can only be done after defeating Elite Four). There, you can play the game and capture the mewtwo into your Pokemon Diamond or Pearl. *Mewtwo tricks not listed for versions Fire Red, Leaf Green, Platinum, Gold, and Silver. The trick is most likely applicable to these versions, but just are not listed anywhere above.