Top 20 Iconic Pokemon Mega Evolution Scenes

VOICE OVER: Ashley Bowman
WRITTEN BY: Saim Cheeda
Mega Evolution brought some of the most jaw-dropping moments in Pokémon history, and we're revisiting the scenes that made fans lose their minds. From dramatic anime reveals to legendary battleground showdowns, these transformations showcased raw power, stunning visuals, and unforgettable trainer bonds. Our countdown includes Charizard X vs. Charizard Y, Ash's Mega Lucario debut, Steven's shiny Metagross, Cynthia's Mega Garchomp, Red's Charizard X, and more! Which Mega moment was your favorite? Let us know in the comments!

#20: Mega Fairy-Type Reveal

For a Pokémon so unique, Altaria seems to be in the possession of quite a few trainers. Still, that doesn’t make its Mega Evolution any less mesmerizing. Not wasting any time to show Ash why she’s one of Kalos’s Elite Four, Drasna activates the Key Stone, and with it, triggering Altaria’s Mega Evolution to shift the battle’s momentum. The already graceful Pokémon becomes faster and more powerful, mesmerizing not just the viewers, but even Dracovish with its brand-new visage. With its Dragon/Fairy typing, Mega Altaria renders Dracovish’s Dragon Rush ineffective, forcing Ash to rethink his strategy. And while our hero ultimately wins, it’s a Mega Evolution that shows us why only the best survive on such a grand scale.


#19: Alain’s Ultimate Elite Four Test

Fans of Mega Evolution get all its worth in this episode. Battling his way through the ultimate test, Alain has to go through 10 consecutive Mega Evolved Pokémon. His toughest challenge arrives in the form of Kalos Elite Four member Malva. Separating the rest from the big leagues, Malva’s Mega Evolved Houndoom immediately takes center stage. Its Mega Evolution is a blend of breathtaking visuals and awesome power, leaving no doubt that Mega Houndoom and Malva mean absolute business. Demonstrating the overwhelming power of an Elite Four Pokémon, Mega Houndoom shrugs off Charizard’s Flamethrower and answers with a blast of its own. Ultimately, it’s only Alain’s unwavering faith in Charizard and a perfectly timed Blast Burn that finally overcomes Mega Houndoom’s ferocious assault.


#18: Mega Metagross vs. 10,000,000 Volt Thunderbolt

Saving his ace for the decisive showdown, Steven activates Mega Evolution the moment Metagross returns to the field. It’s not the kind of Pokémon many were clamoring to see Mega Evolve, yet the moment does come across as cool as intended. The already imposing Shiny Pokémon becomes a near-impossible tactical force, breaking through Pikachu’s attacks with punishing ones of its own. Not only is this Mega Evolution incredible, but it leads into an equally amazing comeback from our hero. Using their patented Z-Move, Ash and Pikachu combine for an astounding 10,000,000 Volt Thunderbolt – the only kind of move that could convincingly bring down a Mega Evolved Metagross.


#17: The Masters Eight Dragon Duel

Cynthia first established herself all the way back during the “Diamond and Pearl” saga. And so, it was only natural that fans were excited to see her at the height of her abilities. But Iris proves far more resilient than she seemed, going toe-to-toe with Sinnoh’s champion all the way. With the biggest ace up her sleeve, Cynthia evolves her Garchomp into its Mega form, transforming it into an even bigger powerhouse. Although not as visually dazzling as most other Mega Evolutions, it’s the sheer intimidation factor that does the trick here. Knowing one of the strongest trainers is pulling out all the stops makes Garchomp feel like an all-out final boss, even though Iris and Haxorus put up an incredibly close battle.


#16: Mewtwo Breaks Its Limits

For longtime fans, you can’t go bigger than Mewtwo. And with Mega Evolution debuting on the big screen, there was no better than Mewtwo to showcase its potential. An animated short film was released in Japan before this movie – more on that later – but this was the first time fans caught Mega Evolution in a feature-length story. Instead of using it as a display of power, Mewtwo first transforms to push beyond its own limits, delivering an instantly captivating visual to kickstart the movie. The transformation later becomes the centerpiece of its clash with Red Genesect, with Mega Mewtwo Y streaking across the skyline in a breathtaking battle against its rival.


#15: Mastering the Aura

Back when Mega Evolution was still a fresh concept, fans anxiously watched Korrina’s Lucario and its Mega Evolution journey. Although it had already accomplished the feat earlier – stay tuned for more on that – this scene illustrates the bond between Trainer and Pokémon. Despite its overwhelming aura causing it to lose control again, Korrina manages to pull it back, placing faith in the love and trust they’ve built with one another. While the majority of Mega Evolution scenes bank on stunning visuals, this one goes deeper into the connection behind it all. With Aura Sphere awakened, Lucario finally manages to control its abilities, making it and Korrina truly one in battle.


Think these Mega Evolutions were incredible? Scan the QR code on your screen to join WatchMojo's 24/7 Pop Culture livestream for even more unforgettable Pokémon moments, anime battles, and fan-favourite countdowns


#14: An Evil Mega for an Evil Trainer

You know things are getting serious when a Pokémon like Gyarados is Mega Evolved. Lysandre’s first Mega Evolution perfectly reflects the scale of Team Flare’s final plan. As Lumiose City descends into chaos and Zygard forced under his control, the Team Flare leader enters the next phase by Mega Evolving his Shiny Gyarados. Even with the impressive animation, it’s business as usual for Lysandre, who unveils this transformation to reinforce his conviction. It’s a rare occasion where a Pokémon’s Mega Evolution is less about the Pokémon itself and more about the Trainer. Where the process usually brings a sense of excitement, this one shows it can be just as foreboding if the narrative steers into that direction.


#13: Mega Explanation

The scene that set up Mega Evolution for the rest of the series deserves special mention. Despite not featuring the transformation onscreen, Professor Sycamore’s explanation lays the foundation for one of the series’ most pivotal moments. Fans once believed that a Pokémon’s evolution was irreversible, only to now learn there are layers to the process. In this case, teasing the concept worked a lot better than if it were actually shown. Fans, like Ash, could instead imagine all the possibilities that came with it. Professor Sycamore’s explanation comes on the heels of Blaziken’s Mega Evolution in the previous episode – we’ll get to that in a bit – providing context for us to accept the next level of evolution.


#12: An Elegant Evolution

Before Mega Evolution became a staple of the anime, Diantha’s Gardevoir gave viewers one of the technique’s most elegant showcases. After Professor Sycamore spends the episode explaining the mechanics behind Key Stones and Mega Stones, the payoff arrives when Diantha calls upon Mega Gardevoir in full view. Rather than rushing through the transformation, the anime lingers on every stage of the evolution, emphasizing Gardevoir’s flowing new design and regal presence. Effortlessly shattering Team Rocket’s trap with a dazzling Moonblast, Gardevoir demonstrates that Diantha’s greatest strength isn’t overwhelming aggression, but flawless composure and precision in the heat of battle.


#11: Mega Blastoise vs. Mega Charizard

Battles between Blastoise and Charizard never get old. And with Mega Evolution on the table, this clash was always meant to go big. Alain has already defeated several Mega Evolution Trainers when he challenges Elite Four member Siebold, but he’s in for a reality check here. Allowing Alain to Mega Evolve Charizard first, Siebold shows us what “Elite” truly entails. While the evolution itself isn’t the flashiest, it’s Blastoise’s attacks that bring in the wow factor. Empowered by its Mega Launcher Ability, Blastoise’s moves are a feast for the eyes, turning the Dragon Pulse and Hydro Pump into devastating weapons. It may not be the fanciest reveal, but the final result is a masterclass on how Mega Evolution is meant to be used.


#10: Mega Debut

Released in Japan in 2013, this short film led into “Pokémon the Movie: Genesect and the Legend Awakened.” In it, we see fan fav legendary Pokemon Mewtwo able to switch into its Mega Mewtwo Y form without a Key Stone as it battles against the villainous hunter Dirk. This introduction to Mewtwo’s mega form gave rise to speculation online that this was the fabled “Mewthree.” Over in the West, as the “Prologue” didn’t come out in the US until 2014, so their introduction to Mega Evolution would’ve likely been in the following Genesect flick, where Mega Mewtwo Y battled it out with the shiny insectoid


#9: Mega to the Rescue

As soon as Ash took his first step into Kalos, we were already catching glimpses of Mega Evolution Pokemon waiting in the wings . In the next episode, Ash tried to calm a rampaging Garchomp on top of Lumiose Tower. However, Pikachu fell off it, causing Ash to dive after him. Seemingly looking like Ash and Pikachu were about to be brutally written out of the anime, a stunning fiery globe flew across and caught them with ease, conjured by Mega Blaziken. Sure, his trainer, the so-called Blaziken Mask, is a little cringe, but we’ll take any chance to see Blaziken strut their stuff.


#8: Old Faces, New Megas

Old school “Pokémon” fans will never recognize any human partners for Ash except Brock and Misty. After Ash and his Alohan crew take a trip to Kanto, we get to witness Brock take on Kiawe for a battle. During it, the Nurse Joy fan brought out his Steelix against Kiawe’s Turtonator, who has a slight advantage. However, Brock turned the contest on its head by Mega Evolving Steelix -- only after he took his top off dramatically -- giving him the win. Then it was time for Misty to fight Ash. She pulled out her Gyarados, and Mega Evolved it against Pikachu. Despite this, Ash used a Z-Move to win. On the plus side, at least Misty finally got her Mega Gyarados, and it’s always nice to see the OG ship demonstrate their skills. Shut up, you know it's true.


#7: Legendary Megas Everywhere

What’s better than one Mega Evolution? A legendary one. What’s better than that? How about 3 of them! In this bombastic smorgasbord of a movie, the titular mythical Pokémon has to fight its Shadow counterpart. With both possessing the ability to use their rings as portals, Hoopa calls upon Latios, Latias, and shiny Rayquaza for help. Shadow responds by summoning 6 legendaries, including Primal Groudon and Primal Kyogre, which feels like cheating. To beef up the power on their side, Latios, Latias, and Rayquaza all Mega Evolve. Nothing will ever be cooler than a Mega Evolved Rayquaza with a black and gold sheen.


#6: Ash's Mega Lucario Debut

When the Dynamaxing/Gigantamaxing gimmick was introduced, discussions erupted among fans about whether that or Mega Evolution was better. Well, this clash certainly proved one party right. During their World Coronation Series Ultra Class battle, Bea was down to her Machamp, while Ash had Lucario left. As the fighting specialist used Gigantamaxed her Pokémon, Ash switched things into high gear and Mega Evolved Lucario. The Aura Pokémon took so much damage in the battle. Yet, Lucario still managed to hold off Machamp’s signature G-Max move.. Seeing the opportunity to strike, it climbed up the vastly bigger Machamp and ended it then and there.


#5: Red's Charizard X

“Pokémon Origins” took the story from the video games “Pokémon Red and Blue” and made a delightful anime version of it. In the final episode, after Red’s Charizard defeated Blue’s Blastoise to become champion, he went off to "Catch ‘em All," leading him to Mewtwo. The battle didn’t initially go well as Mewtwo took out Red’s team, leaving him with only Charizard. When the fire lizard was thrown into its trainer, both plummeted into the water below. As hope seemed lost, Red and Charizard display their bond, igniting Mega Evolution. Now, with Mega Charizard X, they defeat Mewtwo, capture it, and do what Ash should have done since the first series!


#4: Korrina's Over-Amped Lucario

While Mega Evolution is super cool and turns the Pokémon into powerhouses, the effect the change has on the creatures is often overlooked. After all, plenty of Pokédex entries mention the pain they experience. When Korrina gets her Lucario to Mega Evolve, it starts off fine. But then, like flicking a switch, Lucario goes full on savage and wipes out Pikachu. It ignores Korrina’s demands as it goes out of its way to try and permanently replace Pikachu as the true Pokemon mascot. While it would later learn to control its rage, this is a stand out demonstration that, in the right conditions, a Pokemon can be driven to kill.


#3: Mega Sceptile vs. Ash-Greninja

While technically it’s Bond Phenomenon and not Mega Evolution, we essentially get two beloved Pokémon battling it out at their Mega best. Throughout the series, the unique relationship between Ash and Greninja causes the Frog-ninja to turn into Ash-Greninja, some kind of mental bond that the anime kinda pulls out of its ass…but is still awesome to behold. Taking on Sawyer in the semifinals of the Kalos League, both trainers trigger their Pokemon’s strongest forms for a final showdown. Despite Ash-Greninja having a type disadvantage, it puts up a hell of a fight. With help from the environment and its speed, Ash-Greninja releases a huge Water Shuriken, strong enough to shred through a Leaf Storm. As the dust from the impact settled, Ash-Greninja stood tall.


#2: Steven's Mega Shiny

Not every Pokémon champion leaves a big impact. But Steven, with his passion for rocks, is something else. Throughout the Kalos series, the anime released Mega Evolution specials, which starred Alain trying to better his Mega Evolution skills and learn more about the phenomenon. In the second special, Steven is introduced. With the Charizard user obsessed with battling anyone with a Key Stone, he immediately challenged the Champion. After accepting, we got to see what a Shiny Metagross looks like in battle. Even with the type disadvantage, which made Alain cocky, Metagross was a force to be reckoned with. If it wasn’t for Lysandre interrupting, Steven might’ve won.


#1: Charizard X vs. Charizard Y

As one of the most popular Pokémon to walk the animated planet, whenever Charizard is on screen, it’s always a treat. But throw in an additional Charizard and mix in 2 different Mega Evolutions, and it’s amazing. The Kalos League’s Lumiose Conference played host to a battle between Trevor and Alain, both high-tier Charizard users. Both opened with their fire lizards, soon going up a level with Trevor’s Mega Charizard Y and Alain’s Mega Charizard X. The two behemoths went through a litany of moves, dodging and chipping away at each other's health. Though in the end, Charizard X and its superior drip won the day.


Can you think of any other Mega Evolutions that should be on this list? Let us know in the comments.


Have an idea you want to see made into a WatchMojo video? Check out our suggest page and submit your idea.

Step up your quiz game by answering fun trivia questions! Love games with friends? Challenge friends and family in our leaderboard! Play Now!

Tags:

Pokémon, Pokemon, Mega Evolution, Mega Evolutions, anime, Pokémon anime, Charizard X, Charizard Y, Mega Lucario, Ash Lucario, Mega Sceptile, Ash Greninja, Mega Garchomp, Mega Metagross, Mega Gardevoir, Mega Blastoise, Mega Houndoom, Mega Gyarados, Steven Stone, Cynthia, Alain, Korrina, Red, Kalos League, Pokémon battles, anime scenes, key stone, mega stone, watchmojo, watch mojo,