Pokémon: Mega Evolution Special (Japanese:ポケットモンスターXY特別編 最強メガシンカPocket Monsters XY Special Episode: The Strongest Mega Evolution) is a series of four special episodes ofPokémon the Series: XY that are set duringAsh'sjourney throughKalos. The specials focus on an original protagonist and formerassistant ofProfessor Sycamore,Alain, and his partner, a MegaCharizard X, and his quest to research and defeat every knownMega-Evolved Pokémon. He is joined byMairin, a beginningTrainer whostarted with herChespin,nicknamedChespie. Other characters includeSteven, theHoenn LeagueChampion, andLysandre, a mysterious benefactor who has his own reasons for pursuing Mega Evolution.

In Japan, the first special aired on April 3, 2014, a week after the Japanese debut ofA PokéVision of Things to Come!. It focused on Alain's journey to different parts of Kalos to fight and defeat Trainers with Mega Pokémon, includingSiebold of the KalosElite Four. Subsequent episodes aired in Japan on a biyearly basis, with the second and third episodes focusing around MegaRayquaza, thePrimal forms ofGroudon andKyogre, and the origins of Mega Evolution in Hoenn. The fourth and final special aired on October 29, 2015, tying directly into theXY&Z arc ofPokémon the Series: XY.

In the United States, the first special aired on May 31, 2014, a week after the English debut ofA Conspiracy to Conquer!. The remaining three specials aired before thefirst episode of, halfway through, and the week after thelast episode ofPokémon the Series: XY Kalos Quest.

Posters

• 
  Act I poster
• 
  Act II poster
• 
  Act III poster
• 
  Act IV poster

Logos

• 
  Act I logo
• 
  Act II logo
• 
  Act III logo
• 
  Act IV logo

Characters

Main characters

• 
  Alain
• 
  Mairin
• 
  Lysandre
• 
  Steven Stone

Supporting characters

• 
  Professor Sycamore
• 
  Astrid
• 
  Remo
• 
  Siebold
• 
  Malva

Spoiler warning: this article may contain major plot or ending details.

Act I

• Alain is introduced.
• Alain meetsMairin, a beginningTrainer.
• Alain finds aGyaradosite.
• Mairincatches aFlabébé, which shenicknames "Bébé".
• Alain has abattle againstSiebold of theKalosElite Four, but loses.
• Mairin decides to travel with Alain.

Act II

• Alain andMairin arrive in theHoennregion.
• Steven is revealed to own aShinyMetagross, aKey Stone, and aMetagrossite.
• Alain andCharizard battle Steven, but thebattle is interrupted byLysandre.
• Steven is revealed to have replacedWallace as the reigningHoenn LeagueChampion.
• Alain is revealed to be working with Lysandre andLysandre Labs, and to have received hisMega Ring andCharizardite X from him.
• Rayquaza attacks Alain and his company during their research, becomingMega Rayquaza in the process.
• Alain and Steven attempt to battle Mega Rayquaza, but are quickly overwhelmed.
• Lysandre orders Alain to go toRustboro City.

Act III

• Alain,Mairin, andSteven arrive inRustboro City.
• Alain and Steven battlePrimalGroudon and PrimalKyogre.
• MegaRayquaza reappears, stopping the rampage between Primal Groudon and Primal Kyogre.
• Lysandre obtains the legendaryGiant Rock.
• Professor Sycamore learns that Alain can use Mega Evolution.
• Alain separates from Mairin and returns toLysandre Labs to train.
• Mairin returns toKalos with Steven to search for Alain.

Act IV

• Alain andMairin reunite.
• Alain has a battle withMalva of theKalosElite Four and wins.
• Chespie meets aZygarde Core and helps it escape fromLysandre Labs, but becomes ill in the process and falls into a coma.
• Lysandre is revealed to own aKey Stone.
• Alain sets off on a quest to restore Chespie's health.

Japanese DVD releases

Main article:List of Japanese language XY home video releases

• These are the only episodes fromPokémon the Series: XY that were dubbed into English to not be included in any home video releases.

• Official site (Japanese)

• Mega Evolution Pokédex Shorts

This article is part ofProject Anime, aBulbapedia project that covers all aspects ofPokémon animation.