Mewtwo

Mewtwo is a playable character in Super Smash Bros. Melee. In the Pokémon series Mewtwo is an artificial Legendary Pokémon based on the genetic code of the Legendary Pokémon Mew. Due to constant experimentation, he went out of control and escaped. Mewtwo is commonly called the "Dark Side of Pokémon", which makes him one of the three evil playable characters in Melee. The other two are Bowser and Ganondorf, of the Mario series and The Legend of Zelda series, respectively.

Super Smash Bros. Series
Mewtwo was meant to be a playable character in Super Smash Bros., but time constraints posed as an issue, so he was left out.

In Super Smash Bros. Melee Mewtwo is an unlockable character. Mewtwo appears after the player has played a total of 20 hours in VS matches and then battles the match's winner. If the player defeats Mewtwo, then he is unlocked.

Mewtwo is a somewhat heavy character, but has a high air jump (judging that its a Psychic Pokémon). His attacks are powerful, but he is not very fast. It also floats above the ground, making it an easy target to be sent flying, and has low traction. Although these attributes make it difficult to control, he is incredibly powerful once used right.

Mewtwo does not use his hands to hold items, but uses telekinetic powers instead, making the items hover before him. A similar style is seen when Mewtwo hangs on a cliff or grabs another character. The only time he does touch an item is when floating on the Parasol. Mewtwo was voiced by Masachika Ichimura in both English and Japanese.

Mewtwo is one of the five characters who does not return in Super Smash Bros. Brawl as a playable character. He does, however, have the appearance of a trophy which can be obtained by completing All-Star Mode on Intense difficulty.