Every Pokémon Game That Uses Mega Evolution

Battle mechanics took on a new direction in the Pokémon main series during Generation 6 with the addition of Mega Evolution. This special form of evolution isn’t permanent, unlike regular evolution mechanics. Trainers must raise a Mega Evolution Capable Pokémon, obtain an item called a Key Stone, and the Pokémon must be holding a Mega Stone for the mechanics to work. However, once Mega Evolution is achieved, a Pokémon can deal incredibly powerful moves during battle, while also sporting an exciting, temporary Mega Form design. After Mega Evolution was introduced in Pokémon X and Y, it appeared in several other Pokémon titles, but the mechanics work differently in each game.