These are the Pokemon who can mega evolve in X, Y, Omega Ruby, and Alpha Sapphire:
Venusaur, Charizard, Blastoise, Alakazam, Gengar, Kangaskhan, Pinsir, Gyarados, Aerodactyl, Mewtwo, Ampharos, Scizor, Heracross, Houndoom, Tyranitar, Blaziken, Gardevoir, Mawile, Aggron, Medicham, Manectric, Banette, Absol, Garchomp, Lucario, and Abombasnow.
Only in Pokemon Omega Ruby and Alpha Sapphire:
Beedrill, Pidgeot, Slowbro, Steelix, Sceptile, Swampert, Sableye Sharpedo, Camerupt, Altaria, Glalie, Salamence, Metagross, Latias, Latios, Rayquaza, Lopunny, Gallade, Audino, and Diancie.
These Pokemon are considered Primal and do not fall into the Mega Evolution category completely:
Kyogre and Groudon.
Have it hold the Sceptilite, then press "Mega Evolution" during a battle to Mega Evolve it.
Mewtwo is the ultimate Psychic type legendary Pokemon. It was introduced in the first generation and does not evolve into any other Pokemon, although as of the sixth generation it can mega evolve into Mega Mewtwo X or Mega Mewtwo Y.
No, because Mega Evolution wasn't introduced until Pokemon X and Y.
It's mega stone I think is a new item for rayquaza called the green orb
Hitmonlee cannot evolve any further, nor does it have a Mega Evolution form.
No, currently Delphox cannot Mega Evolve or evolve into any other form.
No, Surskit cannot Mega Evolve, but it can normally evolve into Masquerain at level 22.
Have it hold the Sceptilite, then press "Mega Evolution" during a battle to Mega Evolve it.
Xerneas does not have a Mega Evolution.
Pinser in Pokemon does not evolve into any other creature. Pinser does evolve into a Mega Pokemon using the Mega Stone at any level.
Not normally, but they can evolve into their Mega Evolution forms in battle through the use of their respective Mega Stones.
Mega charizard
Mewtwo is the ultimate Psychic type legendary Pokemon. It was introduced in the first generation and does not evolve into any other Pokemon, although as of the sixth generation it can mega evolve into Mega Mewtwo X or Mega Mewtwo Y.
Aerodactyl can only Mega Evolve into Mega Aerodactyl. Permanently, Aerodactyl cannot evolve any further.
Mewtwo can Mega Evolve into either Mega Mewtwo Y or Mega Mewtwo X.
Beat the 5th Gym, and go east of Mauville, then surf east. Go on the adventure with Steven on Route 118, then he will give you the Mega-Whatever that allows you to mega-evolve. Then simply attach the mega stone of whatever you're trying to mega-evolve, and have fun!
No You can get Heracross on honey tree's. No. Shut up! good bye. ~kalempokemaster~