Currently, Pikachu does not have a Mega Evolution form or haven't announced a Mega Evolution. Relating to Mega Evolution, Raichu, however, will have a Alola Form, exclusive to the upcoming Pokemon Sun and Moon.
The evolution of Pikachu is Raichu. You evolve it with a Thunderstone which can be found or sometimes be bought in the games.
Give Pikachu a thunderstone and it will evolve into a Raichu.
When you evolve pikachu with a thunder stone, basically you get it's evolved form which is a Raichu.
actually raichu doesnt evolve but he could if someone used action replay or hacked
with a thunderstone into raichu
Richu
Xerneas does not have a Mega Evolution.
It's currently not known if Infernape is capable of mega evolving.
Not normally, but they can evolve into their Mega Evolution forms in battle through the use of their respective Mega Stones.
There is no such thing as a mega stone in Pokémon Pearl. Mega stones were first introduced in Pokémon X and Y and are required for certain Pokémon to Mega Evolve, which is a temporary new evolution stage.
Lapras cannot evolve any further in Pokemon, nor does it have a Mega Evolution.
Yes, it is Pikachu's only evolution, though Pikachu has a pre-evolution, Pichu.
no
pikachu
No, Mega Evolution can only be used during a battle.
Pichu -> Pikachu -> Raichu (It's called evolution)
Pichu, which evolves to Pikachu through a happiness evolution.
Raichu
No it does not have a primal evolution instead it has a mega evolution
Xerneas does not have a Mega Evolution.
find a thunderstone and use it on pikachu then your pikachu will evolve into the powerful max evolution raichu
A Moonstone does not trigger a Pikachu's evolution. Pikachu evolves from its baby evolution (Pichu) through friendship/happiness. It cannot evolve into its final evolution, Raichu, without a Thunderstone. It will never evolve upon levelling up even if it has max friendship/happiness with its trainer.
Have it hold the Sceptilite, then press "Mega Evolution" during a battle to Mega Evolve it.