Mega Evolutions

Pokémon	Before Mega Evolution			After Mega Evolution			Mega Stone	Mega Stone Location
	Image	Type	Ability	Image	Type	Ability
Custom Mega Evolutions
Torterra			Overgrow --- Shell Armor (Hidden)			Thick Forest	Torterrite	Shawmonk Forest
Infernape			Blaze --- Iron Fist (Hidden)			Tough Claws	Infernite	Naraku Forest
Decidueye			Overgrow --- Long Reach (Hidden)			Shadow Aura	Deciduite	Naraku Forest
Incineroar			Blaze --- Intimidate (Hidden)			Moxie	Incineroarite	Skaters Den
Primarina			Torrent --- Liquid Voice (Hidden)			Prism Armor	Primarinite	Cape Precipice
Delphox			Blaze --- Magician (Hidden)			Magic Guard	Delphoxite	Star Temple
Data Ambipom			Technician or Pickup --- Skill Link (Hidden)			Huge Power	Swolstone	Future Asutran Jungle
Data Electivire			Motor Drive --- Vital Spirit (Hidden)			Huge Power	Swolstone
Legacy Mega Evolutions
Venusaur			Overgrow --- Chlorophyll (Hidden)			Thick Fat	Venusaurite	Shawmonk Forest
Charizard			Blaze --- Solar Power (Hidden)			Tough Claws	Charizardite X	Route 106
						Drought	Charizardite Y
Blastoise			Torrent --- Rain Dish (Hidden)			Mega Launcher	Blastoisinite	Unobtainable in the current version of the game.
Pidgeot			Keen Eye or Tangled Feet --- Big Pecks (Hidden)			No Guard	Pidgeotite	Carnival Park
Alakazam			Synchronize or Inner Focus --- Magic Guard (Hidden)			Trace	Alakazite	Empral Town
Gengar			Levitate			Shadow Tag	Gengarite	Naraku Village
Kangaskhan			Early Bird or Scrappy --- Inner Focus (Hidden)			Parental Bond	Kangaskhanite	Cape Precipice
Gyarados			Intimidate --- Moxie (Hidden)			Mold Breaker	Gyaradosite	Naraku Village
Ampharos			Static --- Plus (Hidden)			Mold Breaker	Ampharosite	Teal Cave
Scizor			Swarm or Technician --- Light Metal (Hidden)			Technician	Scizorite	Mt. Mesmer
Houndoom			Early Bird or Flash Fire --- Unnerve (Hidden)			Solar Power	Houndoominite	Mt. Mesmer
Tyranitar			Sand Stream --- Unnerve (Hidden)			Sand Stream	Tyranitarite	Route 105
Sceptile			Overgrow --- Unburden (Hidden)			Lightning Rod	Sceptilite	Flowery Path
Blaziken			Blaze --- Speed Boost (Hidden)			Speed Boost	Blazikenite	Route 105
Swampert			Torrent --- Damp (Hidden)			Swift Swim	Swampertite	Shawmonk Lake
Gardevoir			Synchronize or Trace --- Telepathy (Hidden)			Pixilate	Gardevoirite	Sylen City Research Center
Mawile			Hyper Cutter or Intimidate --- Sheer Force (Hidden)			Huge Power	Mawilite	Empral Cave
Aggron			Sturdy or Rock Head --- Heavy Metal (Hidden)			Filter	Aggronite	Naraku Cave
Altaria			Natural Cure --- Cloud Nine (Hidden)			Pixilate	Altarianite	Route 107
Banette			Insomnia or Frisk --- Cursed Body (Hidden)			Prankster	Banettite	Route 113 (Military Base)
Absol			Pressure or Super Luck --- Justified (Hidden)			Magic Bounce	Absolite	Route 104
Salamence			Intimidate --- Moxie (Hidden)			Aerilate	Salamencite	Roarin Plateau
Metagross			Clear Body --- Light Metal (Hidden)			Tough Claws	Metagrossite	Teal Cave (Boat needed)
Garchomp			Sand Veil --- Rough Skin (Hidden)			Sand Force	Garchompite	Route B000
Lucario			Steadfast or Inner Focus --- Justified (Hidden)			Adaptability	Lucarionite	Delta Overpass (Boat needed)
Abomasnow			Snow Warning --- Sound Proof (Hidden)			Snow Warning	Abomasite	Mt. Mesmer
Gallade			Steadfast --- Justified (Hidden)			Inner Focus	Galladite	Route 113 (Military Base)
Greninja			Torrent --- Protean (Hidden)			Torrent --- Protean (Hidden)	Shuriken	Naraku Village (Dark Lake)

Missing mega stones/alterants (v1.0):

Aerodactylite, Audinite, Beedrillite, Blastoisinite, Blue Orb, Diancite, Cameruptite, Glalitite, Gyaradosite, Heracronite, Latiasite, Latiosite, Lopunnite, Manectite, Medichamite, Mewtwonite X, Mewtwonite Y, Pinsirite, Red Orb, Sablenite, Sharpedonite, Slowbronite, Steelixite