Mewtwo (ミュウツー, Mewtwo) is a fictional creature from the Pokémon series. It debuted in the series' first generation, and represents that generation as a playable character in Super Smash Bros. Melee, Super Smash Bros. 4, and Super Smash Bros. Ultimate.
Mewtwo is a Psychic-type Pokémon that debuted in Generation I, and is categorized within the Pokédex at #150 as the "Genetic Pokémon". Unlike the overwhelming majority of Pokémon, Mewtwo was artificially created: a team of scientists performed genetic recombination on a sample of DNA derived from the Mythical Pokémon Mew in order to create the most powerful Pokémon in existence. Its creation is documented in a researcher's journals scattered across an abandoned mansion on Cinnabar Island.
However, this process also resulted in Mewtwo's appearance and mentality drastically differing from Mew's. Despite being a feline with embryonic features like Mew, it has a large, humanoid physique with a gray and purple coloration, instead of the pink, petite appearance of its genetic source material. Despite lacking Mew's capability to learn every Technical Machine, Hidden Machine, and Move Tutor move, Mewtwo's modified genome results in its base statistic total noticeably exceeding Mew's.
Although Mewtwo is reclusive like Mew, this is the only personality trait they share: due to being created solely for battle, Mewtwo has a tendency to be vicious and, upon encountering an opponent, fights savagely while thinking only of defeating them. In comparison, Mew has a gentle temperament and willingness to reveal itself to the pure of heart. After violently escaping captivity, Mewtwo decided to seclude itself from civilization; most notably, it has been seen residing in the deepest depths of Kanto's Cerulean Cave, a small cave within Kalos' Pokémon Village, and a craggy, barren alternate dimension that is accessible via Ultra Space.
Due to being an immensely powerful genetic relative of a Mythical Pokémon, Mewtwo has the status of a Legendary Pokémon in spite of its man-made origin. In-game, Mewtwo was designed to be the final Pokémon of Generation I, and has traits that highlight its status as such: not only is it difficult to find and capture, it belongs to the notoriously powerful Psychic type and sports the highest base stat total in the entire game, with especially high Special and Speed stats. Thanks to its sheer strength making it a dominant force in the early competitive scene, as well as its leading role in the franchise's first movie, Mewtwo quickly garnered a good degree of fame and popularity among the Pokémon fanbase.
However, Mewtwo soon became a ubiquitous sight in competitions, upsetting the overall balance of the metagame. In response, Generation II adjusted the type interactions to balance the power of Psychic types, and split the Special stat into Special Attack and Special Defense to curb one of Mewtwo's most prominent advantages. Although its base stat total increased from 590 to 680 because of the stat redistribution, its prominence nevertheless waned in the wake of numerous other Legendary Pokémon appearing in subsequent generations.
After receiving Psystrike as a signature move in Generation V, Mewtwo's prominence underwent a resurgence in Generation VI, with it being among the initial handful of Pokémon to gain access to Mega Evolution. Unlike most Pokémon who can Mega Evolve, it has two Mega Evolutions, a trait shared with Charizard. In Mewtwo's case, it will Mega Evolve into the larger and bulkier Mega Mewtwo X while holding Mewtwonite X, which also changes it into a Psychic/Fighting-type. Conversely, it will Mega Evolve into the smaller and lighter Mega Mewtwo Y while holding Mewtwonite Y.
In the Pokémon anime and movies, Mewtwo is depicted as a modified clone of Mew, instead of the culmination of genetic recombination on a sample of Mew's DNA. In this continuity, Mewtwo was also developed in collaboration with the criminal organization Team Rocket, giving the Pokémon a more sympathetic backstory. Because of its desire to be seen as a sentient being instead of the result of a science experiment, Mewtwo develops a hatred for humans and the concept of subservient Pokémon, to the point that it attempts to prove the superiority of clones over their source materials.
Upon recognizing the profound impact that Ash Ketchum's sacrifice had upon both the originals and their clones, Mewtwo has a change of heart following its realization that life is defined by one's actions instead of their origins. To this end, it begins to protect its fellow clones after whisking them away to Johto's Mount Quena, a mountain that is virtually inaccessible by humans. After stopping Team Rocket's attempt at recapturing it and subsequently erasing their memories of its existence, Mewtwo decides to travel the world in order to avoid detection and find a purpose in its life, whereas its fellow clones decide to live peacefully among natural Pokémon in the wild.
Despite the species' one-of-a-kind nature within the core series, other Mewtwo have appeared across the various Pokémon continuities ever since. Two other Mewtwo have fully-voiced appearances: one in the sixteenth movie that is capable of undergoing Mega Evolution, and one in both the Detective Pikachu spin-off game and the live-action movie of the same name.
Although Mewtwo is genderless like Mew within the games, this is not depicted consistently in other media. In the anime, the telepathically-generated voice for the first Mewtwo is male (which is reflected in the Super Smash Bros. series), whereas the second Mewtwo featured in the sixteenth movie has a feminine voice. In comparison, the Detective Pikachu film's Mewtwo possesses an artificial, androgynous voice, but is referred to with male pronouns nonetheless.
Mewtwo does not appear in Super Smash Bros. in any capacity. However, according to a page on the game's Japanese site, it was planned for inclusion in the roster. Unlike Bowser and King Dedede, however, no development was made for Mewtwo in regard to being a playable character.
As a playable character
Main article: Mewtwo (SSBM)
Mewtwo made its Super Smash Bros. series debut as an unlockable character in Super Smash Bros. Melee. It can be unlocked after playing 20 cumulative hours of Versus Mode matches (5 hours for 4 players) or playing 700 Versus Mode matches.
Mewtwo is very floaty and possesses a decent combo game, a very good wavedash and grab game, above-average dodges, a strong projectile in Shadow Ball, and one of the best recoveries in Teleport. Mewtwo also possesses a reflection-capable move in Confusion, while Disable stuns any close-range opponent that directly faces Mewtwo. On the other hand, Mewtwo has a flawed combination of large size and light weight; this not only results in it being an easy target to hit and combo, but also especially easy to KO despite its recovery and defensive prowess. Mewtwo also has general awkwardness in its mobility and moveset, the latter of which is burdened with minimal utility and a small number of KOing options.
As a result of its weaknesses outweighing its flaws, Mewtwo infamously sat in the bottom-tier of Melee's tier list for most of the game's lifespan, to the point that it was even considered the worst character in the entire game at several points in Melee's lifespan. However, the efforts of Taj resulted in Mewtwo being reassessed as a low-tier character; this has been reflected with its current ranking of 21st out of 26 on the tier list, placing it in the F tier.
Main article: List of SSBM trophies (Pokémon series)
Mewtwo, as a playable character, has three trophies: a main trophy acquired by clearing Classic Mode with Mewtwo on any difficulty, and the two Smash trophies are by clearing Adventure Mode and All-Star Mode, respectively. Its Classic Mode trophy reads:
Mewtwo did not return in Super Smash Bros. Brawl as a playable character, despite not being a clone like the other cut characters. Although Mewtwo was unpopular among Melee's competitive community, its departure nevertheless resulted in a significant amount of fan outcry, as the majority of players saw it as an unjustified cut. It should be noted that Lucario, a newcomer and fellow Pokémon series representative, was widely perceived as similar to Mewtwo in many aspects, to the point that it was generally viewed as Mewtwo's successor in the Super Smash Bros. series.
Main article: Beta elements (SSBB)#Scrapped characters
While Mewtwo does not appear as a playable character in Brawl, there are several empty files on the game disc bearing its name. These include a graphic effects file (
Main article: List of SSBB trophies (Pokémon series)
Mewtwo appears in Brawl as a collectible trophy, obtained by completing All-Star Mode on Intense difficulty. The trophy describes Mewtwo's appearance in the Pokémon games, but makes no reference whatsoever to its appearance in Melee:
As a playable character
Main article: Mewtwo (SSB4)
During development of the game, an appearance of Mewtwo's Mega Evolution was reportedly considered by Masahiro Sakurai. During the Pokémon X and Y Developer Roundtable at E3 2013, an audience member asked if developers wanted to see Mega Mewtwo in the next Super Smash Bros. game. While the developers stated that they had nothing to report about the question, Sakurai, who was in the audience at the time, reportedly said "We are thinking about it."
Despite this, Mewtwo did not initially make the final cut of the game as a playable character, returning only as a collectible trophy. Mega Mewtwo X and Mega Mewtwo Y also appear together as a singular trophy in Super Smash Bros. for Wii U.
Mewtwo was later announced in the Super Smash Bros. for Wii U: 50-Fact Extravaganza as a playable character, becoming the first fighter in Super Smash Bros. history to be be made available as downloadable content.
Consumers who registered both Super Smash Bros. for Nintendo 3DS and Super Smash Bros. for Wii U on Club Nintendo before March 31, 2015 could download it for free as of April 15th, while others were able to purchase it beginning on April 28th. Its moveset is mostly unchanged from Melee, aside from the addition of its own Final Smash, consisting of Mega Evolving into Mega Mewtwo Y before performing its signature move, Psystrike.
Upon its return to the series, Mewtwo was poorly regarded by the competitive scene, as its already light weight was lowered further and its already large hurtbox became slightly taller. However, Mewtwo did see improvements to Confusion and Disable, two of its most arguably least used moves: the former now functions as a traditional reflector, while the latter's stun effect has a longer duration.
However, Mewtwo underwent a considerable turning point thanks to game updates. Update 1.1.3 increased Mewtwo's grounded and aerial speeds, as well as improved its already potent forward smash and aerial attacks. Although update 1.1.5 provided very few changes, they were effective regardless: Mewtwo's weight was marginally increased, its already fast dashing speed was increased to the point of becoming the seventh fastest in the game, and both its up smash and neutral aerial were made safer thanks to adjustments to their ending lag and hitbox sizes, respectively.
As a result of these very substantial buffs, opinions on Mewtwo drastically improved, as it has managed to earn some noteworthy representation and consistently achieves high placings at all levels of play. Thanks to this newfound success, Mewtwo is currently ranked 10th out of 55 on the tier list, placing it in the A tier and assessing it as a top-tier character.
As a playable character
Main article: Mewtwo (SSBU)
Mewtwo returns as an unlockable character in Super Smash Bros. Ultimate. Much like in Melee, it is one of the very last characters to be unlocked, as all three of its unlock methods (Smash battles, Fox's Classic Mode unlock tree, and World of Light) designate it as one of the last characters encountered.