While it is not known to evolve into or from any other Pokémon, it can Mega Evolve into two different forms: Mega Mewtwo X using Mewtwonite X and Mega Mewtwo Y using Mewtwonite Y.
Mewtwo is a Pokémon created by science. It is a bipedal, humanoid creature with some feline features. It is primarily gray with a long, purple tail. On top of its head are two short, blunt horns, and it has purple eyes. A tube extends from the back of its skull to the top of its spine, bypassing its neck. It has a defined chest and shoulders, which resemble a breastplate. The three digits on each hand and foot have spherical tips. Its tail is thick at the base, but thins before ending in a small bulb.
Mega Mewtwo X is larger and bulkier than its normal state. The horns on its head are longer, extending from V-shaped ridges on its forehead, pointed, and curved upward. It now has two tubes behind its neck, its eyes are light blue, and it has large, purple growths over its shoulders. Its torso is smooth and small compared to its long, bulky limbs, and a Y-shaped line connects the collar and underbelly. Its forearms and thighs each have two raised ridges, and its digits are now longer and thinner. The tail is slightly shorter and stiffer than before and has a curled tip.
In comparison, Mega Mewtwo Y is smaller and lighter, losing its long tail and the tube behind its neck. However, it grows a long, purple appendage with a curled tip from the back of its head that is similar to its previous form's tail. On its head it has two pointed, backward-curving spikes and a half-ring structure connecting the base of each, with empty space inside. Its eyes are now red and slightly larger. The digits on its hands and feet are now purple and more bulbous, and the middle toe is longer than the others. A bumpy ridge similar to a sternum replaces the breastplate structure on its chest, but this form is still largely smoother than the other two.
Mewtwo was created after years of horrific gene splicing and DNA engineering experiments based on Mew. It is said to have the most savage heart among all Pokémon, lack compassion, and strike fear into its enemy with cold, glowing eyes. Because it was engineered to be the ultimate in battle, it can only think of defeating its foes. In the first movie, Mewtwo exemplified these vicious characteristics and was shown to be capable of levitation, telepathy, and mind control. However, it was later shown to be caring, protective, and even altruistic. Another Mewtwo in the anime shared its aversion to contact with others, but was much less belligerent. Mewtwo conserves energy by remaining motionless to unleash its full power in battle. It is also capable of materializing psychic waves in the form of its signature move, Psystrike. Though rarely seen in the wild, it is said to be resting in a dark cave somewhere.
History
According to the scientific logs found in the Pokémon Mansion of Cinnabar Island, Mewtwo was born of a pregnant Mew, found deep in the jungles of Guyana, whose embryo had been tampered with to alter its DNA. It was held and studied in the mansion where a scientist performed horrific gene-splicing experiments that made it vicious and extremely powerful. It eventually broke free of the Mansion, destroying it in the process, and fled. It can be encountered in Cerulean Cave, accessible only after a Trainer has proven his or her skill at the Indigo Plateau.
In the anime
Mewtwo in the animeMega Mewtwo X in the animeMega Mewtwo Y in the anime
It reappeared in Genesect and the Legend Awakened as both its normal form and Mega Mewtwo Y. At the beginning of the film, Mewtwo encountered the Genesect Army, who were looking for their home after being recreated. After a short conflict, the Army departed, and Mewtwo followed them to New Tork City. It met Ash and his friends, then got into a great conflict with the Red Genesect leading the Army.
Two Mewtwo appeared in the introduction to Mega Evolution Special I, one as Mega Mewtwo X and one as Mega Mewtwo Y.
A picture resembling Mewtwo appeared on the lighthouse door in Mystery at the Lighthouse.
Spoiler warning: this article may contain major plot or ending details.
Red's Mewtwo
Mewtwo appears as the ultimate adversary of Red in Pokémon Origins in File 4 - Charizard. As in the games, it is encountered in Cerulean Cave after defeating Blue. In a hard battle that wiped out almost all of Red's Pokémon, Mewtwo is defeated by Charizard after it Mega Evolves into Mega Charizard X. With Mewtwo captured after several tries, Red then had all 150 known Pokémon.
During the final volume of Magical Pokémon Journey, Hazel goes to a forest in another dimension to find Mew so it can grant her a wish, but is trapped by Mewtwo.
Mewtwo has a similar origin and personality to the Mewtwo that appeared in the anime. It was created by Team Rocket scientist Blaine, who added his own human DNA to Mewtwo to finish its creation when Mew's cells weren't enough. Together, Red and Blaine battled with Mewtwo, which eventually ended in its capture via Master Ball.
Pokémon Puzzle League: Mewtwo reveals that it organized the Puzzle League to find a worthy foe and clones Ash's Pokémon. In the Very Hard and Super Hard modes, Mewtwo is the final opponent.
Mewtwo is a Pokémon that was created by genetic manipulation. However, even though the scientific power of humans created this Pokémon's body, they failed to endow Mewtwo with a compassionate heart.
A POKéMON that was created by genetic manipulation. However, even though the scientific power of humans made its body, they failed to give it a warm heart.
Mewtwo is a Pokémon that was created by genetic manipulation. However, even though the scientific power of humans created this Pokémon's body, they failed to endow Mewtwo with a compassionate heart.
Among these Pokémon, Mewtwo is the only one to receive a signature move outside of its debut generation. Mewtwo had no signature move until Generation V, when it became the only Pokémon able to learn Psystrike.
Mewtwo was the first Pokémon seen in the English dub, as it appears at the very beginning of the first dub opening.
Mewtwo is depicted on the door of Bill's lighthouse in Mystery at the Lighthouse despite having only been seen by its creators and Team Rocket at that point in the anime. Similarly, Mewtwo's sprite was depicted as a portrait in Viridian Gym, despite being a public area.
The island country of Niue released a one-dollar coin featuring Mewtwo as part of a commemorative promotion for the Pokémon franchise, with Mewtwo on the reverse side and the nation's crest on the obverse.
Mewtwo was originally depicted as the only member of its species, being a clone of Mew. In the anime and manga, however, it is implied that multiple Mewtwo have been created.
Mega Mewtwo Y was the first Mega Evolution revealed to the public and the first to appear in the anime, even before Mega Evolution was announced.
Prior to the announcement of Mega Evolution, Mega Mewtwo Y was referred to as its 「覚醒した姿」 Awakened Form.[1] This term was also used in the manga adaptation of the movie.
Mewtwo's Mega Evolutions are tied with MegaRayquaza for the highest base stat total of all Pokémon, with 780.
Mega Mewtwo X has the highest base Attack of all Pokémon, as well as the highest single base stat and base Special Attack of all Fighting-type Pokémon.
Mega Mewtwo X's Attack increase is the largest single stat increase of all Mega Evolutions, at 80 points.
Mega Mewtwo Y has the highest base Special Attack of all Pokémon and the highest single base stat of all Psychic-type Pokémon.
Mewtwo and Charizard are currently the only Pokémon with two Mega Evolutions.
Origin
Like Mew, Mewtwo has some feline characteristics, but its body structure is much larger as a result of gene splicing. Mewtwo also has some characteristics of a grey alien.
Name origin
Mewtwo is a combination of Mew (the Pokémon it originated from) and two (indicating that it is a clone). It also sounds somewhat similar to mutant (ミュータント).
This Pokémon article is part of Project Pokédex, a Bulbapedia project that aims to write comprehensive articles on each Pokémon species, as well as Pokémon groups and forms.