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Yes. Mega Greninja is an official Pokémon form introduced for Pokémon Legends: Z-A, not a fan-made design. The Pokémon Company published a dedicated Mega Greninja profile and announced Greninjite, its Mega Stone, as a reward tied to online Ranked Battles.
What is Mega Greninja?
Mega Greninja is a Mega Evolution of Greninja featured in Pokémon Legends: Z-A. Its official profile lists it as a Water- and Dark-type Ninja Pokémon. The profile gives its height as 4 feet 11 inches and its weight as 88.2 pounds; these are fictional character-profile values.
The Pokémon Company describes the change this way: “Unleashing the energy of Mega Evolution has dramatically improved Mega Greninja’s reflexes.” The profile says Mega Greninja can reveal itself to draw an opponent into attacking, then use its improved reflexes to strike first. It also describes a giant floating water shuriken formed from a gel-like membrane secreted by its body. These are descriptions of the fictional Pokémon, not real-world observations.
Which game features Mega Greninja?
The official announcement introduced Mega Greninja among the new Mega Evolutions discovered in Pokémon Legends: Z-A. The game’s official Mega Greninja profile provides its type and other character details.
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![Pokémon Legends: Z-A – Mega Dimension DLC - Nintendo Switch [Digital Code]](https://m.media-amazon.com/images/I/51r8yUj+syL._SL160_.jpg)
- Venture into Hyperspace Lumiose in this additional story content that can be accessed after completing the main game
- Work with the mysterious baker, Ansha, to make donuts that awaken the Mythical Pokémon Hoopa’s power and grant you and your Pokémon a variety of useful effects
- Join Team MZ and the Mega Evolution Successor, Korrina, to investigate Hyperspace Lumiose, the otherworldly home to rare and hyper-strong Pokémon
- Discover new Mega Evolutions such as Mega Raichu X, Mega Raichu Y, Mega Chimecho and Mega Baxcalibur
- Claim Holo-X and Holo-Y in-game apparel items, which you can wear as soon as you are able to customize your character’s look and outfit in the main game
How do you get Greninjite?
Greninjite is Mega Greninja’s Mega Stone. In its September 12, 2025 announcement, The Pokémon Company said the stone would be awarded for promotion in online Ranked Battles in the Z-A Battle Club. It named Greninjite as the season-one promotion reward and said that Mega Stones of this kind cannot normally be obtained through regular gameplay.
The announcement gave October 16 as the start of the season-one schedule. Because Ranked Battle seasons and reward availability can change, check the game’s current in-game news for the active reward and eligibility requirements. The announcement also says online features require a Nintendo Account and Nintendo Switch Online membership; availability and terms vary by region. See the official announcement for the original reward details.
Rank #2
![Pokémon Legends: Z-A Standard - Nintendo Switch [Digital Code]](https://m.media-amazon.com/images/I/41IOdpg0EfL._SL160_.jpg)
- Your journey will take you to all manner of sights in the streets arrayed around Prism Tower, including shops, restaurants, and places called wild zones—where Pokémon roam free.
- As you catch, train, and battle Pokémon, there will be plenty of people to meet too—like AZ, the enigmatic owner of Hotel Z.
How does Mega Evolution work?
Pokémon’s general Mega Evolution explanation says the transformation is temporary and requires a Trainer to wear a Key Stone while the Pokémon holds a corresponding Mega Stone. Greninjite is the stone associated with Mega Greninja. Read the official Mega Evolution overview for the mechanic’s general explanation.
Quick Recap
Best Value
- An ambitious new adventure set in Lumiose City awaits in Pokémon Legends: Z-A, coming to Nintendo Switch in late 2025. Explore the city, unravel its secrets and battle Pokémon like never before!
- An urban redevelopment plan is underway in Lumiose City! The goal: to turn it into a place Pokémon and people can truly share. Shortly after arriving, you’ll choose from one of these partner Pokémon to accompany you on your journey – Chikorita, Tepig or Totodile.
- Together, you can explore the streets of this vast city or visit Wild Zones – habitats where you’ll encounter wild Pokémon. To catch them, aim carefully and throw a Poké Ball or take them on with the help of the Pokémon on your team.
- For the first time ever, Trainers and their Pokémon will move around and take action in real time during battles. Pokémon will unleash their moves when their Trainers command them to. In addition to type matchups, there will be new mechanics to consider, such as the precise timing for swapping out your Pokémon or using moves, the different lengths of time moves will take to launch, and how big an area the moves will impact.
- In Lumiose City, Pokémon can go beyond Evolution by undergoing Mega Evolution! When a Trainer’s Key Stone resonates with the Mega Stone held by their Pokémon, the Pokémon will do more than just change shape and size – it will unlock a new level of power, which could turn the tide of battle!
Rank #4
- Live the life of a Pokémon Trainer in the streets of Lumiose City!
- For the first time in the Pokémon RPG series, command your Pokémon in real-time battles
- Use the power of Mega Evolution in battle and take on rampaging Rogue Mega-Evolved Pokémon
- Compete in the Z-A Royale each night to test your skills and try to become the strongest Pokémon Trainer
- Visit shops, restaurants, and places called wild zones—where Pokémon roam free—all centered around Prism Tower
Rank #3
- [4K ULTRA HD PERFORMANCE] Protect the peace in Lumiose City in this enhanced edition for the Nintendo Switch 2 system, featuring native 4K resolution and a stable 60FPS frame rate. Experience the urban re-development plan with high-fidelity textures and advanced lighting effects centered around the iconic Prism Tower.
- [REAL-TIME BATTLE ENGINE] For the first time in the Pokémon RPG series, command your Pokémon in seamless real-time battles. Engage over 100+ unique species with zero loading transitions, utilizing an upgraded combat AI that leverages the increased processing power of the Switch 2 hardware.
- [MEGA EVOLUTION MECHANICS] Master the power of Mega Evolution to suppress rampaging Rogue Mega-Evolved Pokémon appearing across the Kalos region. This edition introduces 15+ newly discovered Mega-Evolved forms, each rendered with dynamic particle effects and exclusive Z-A signature moves for tactical depth.
- [MULTIPLAYER Z-A ROYALE] Compete in the Z-A Royale each night to test your skills against global Trainers. Supported by Nintendo Switch 2's improved low-latency wireless architecture, these competitive events allow you to climb leaderboards and unlock rare evolution stones in 20-player lobbies.
- [EXPANSIVE WILD ZONES] Explore vibrant Wild Zones where Pokémon roam free in their natural habitats, from bustling city shops to hidden restaurants. This Hong Kong physical edition is region-free and supports English, Traditional Chinese, and Japanese, featuring the enigmatic AZ and the peacekeeping Team MZ.
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