Pokemon with Mega Evolution

These must be the Pokémon with Mega Evolution. 

In the Kanto Region, there was Mega Venusaur, 

Mega Charizard X, Mega Charizard, 

Mega Blastoise, Mega Beedrill, Mega Pidgeott, Mega Alakazam, 

Mega Slowbro, Mega Gengar, Mega Kangaskhan, 

Mega Pinsir, Mega Gyarados, Mega Aerodactyl, 

Mega Mewtwo X, and Mega Mewtwo Y. 

In the Johto Region there was 

Mega Ampharos, Mega Scizor, Mega Heracross, 

Mega Houndoom, Mega Steelix and Mega Tyranitar. 

In the Hoenn Region, there was Mega Sceptile, 

Mega Blaziken, Mega Swampert, 

Mega Gardevoir, Mega Sableye, Mega Sharpedo, 

Mega Camerupt, Mega Mawhile, Mega Aggron, 

Mega Medicham, Mega Manectric, Mega Banette, 

Mega Absol, Mega Glalie, Mega Altaria,Mega Salamence, 

Mega Metagross, Mega Latios, Mega Latias, and Mega Rayquaza. 

In the Sinnoh Region, there was a Mega Lopunny, Mega Gallade, 

Mega Garchomp, Mega Lucario, and Mega Abomasnow. 

In the Unova Region there was a Mega Audino 

and in the Kalos Region there was a Mega Diancie. 

I think one of my favorite Pokémon like Gengar 

has a Mega Evolution that has became a Mega Gengar. 

Not Pikachu and not Snorlax. 

And also, one of my least favorite Pokémon like 

Mewtwo has a Mega Evolution. 

Which means, Mewtwo has became a Mega Mewtwo X 

and Mega Mewtwo Y. 

Not Nihilego, not Pheramosa, not Buzzwole, 

not Celesteela, not Guzzlord, not Xurkitree, 

and not Kartana. 

There is no Mega Evolution in Pokémon GO. 

I think Snorlax doesn't have a Mega Evolution 

because Everybody made it up.