Task List/megaevo lv1
Mega Evolution is a special kind of Evolution. Once you obtain your first Mega Accessory, you will also receive a random Mega Stone. Some Pokémon have a Mega Stone named after them. Mega Evolving outside of battle is different and difficult to do - you will need Doug's help. He can be found at Shop's third floor (you can access it from Shop's Directory). There, you can spend Credits to Mega Evolve a Pokémon for 30 days, or Gold Poké to do so permamently. However, Mega Stone is destroyed during this process, so choose carefully.
For more information on Mega Evolution, check the Wiki.