Overview
Why some wild Pokémon transform unexpectedly.
How it works
Lumiose experiences cases of Pokémon megaevolving spontaneously without the usual trainer-linked process. Official materials describe distressed Pokémon that need help as Team MZ investigates.
How to play
Approach these as significant story encounters. Learn the attack patterns, be prepared to dodge and treat these missions differently from ordinary captures.
Mistakes to avoid
Do not assume every rogue Mega can simply be caught like a normal wild Pokémon.
Go further: Rogue Mega Evolution
How to read the story
Follow the related character and location guides to see how people, places and mechanics connect without losing track of the current quest.