To get Mega Raichu X and Mega Raichu Y in Pokémon Legends: Z-A, you need the Mega Dimension DLC, must complete Side Missions 2 and 108, and then finish Side Mission 139, “The Dauntless Raichu Duo.” The mission is reported to appear in a random yellow Hyperspace portal; completing it awards both Raichunite X and Raichunite Y.
What you need before starting
Both Mega Raichu forms are tied to the paid Mega Dimension DLC, not the base game alone. Nintendo lists the additional story content, including the two Mega Stones, as available from December 9, 2025. You also need a copy of Pokémon Legends: Z-A to play the DLC. Nintendo says the DLC is compatible with both the Nintendo Switch and Nintendo Switch 2 editions.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
![Pokémon Legends: Z-A – Mega Dimension DLC - Nintendo Switch [Digital Code]](https://m.media-amazon.com/images/I/51r8yUj+syL._SL160_.jpg)
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Pokémon Legends: Z-A – Mega Dimension DLC - Nintendo Switch [Digital Code] | $29.99 | Buy on Amazon |
| 2 |
![Pokémon Legends: Z-A Standard - Nintendo Switch [Digital Code]](https://m.media-amazon.com/images/I/41IOdpg0EfL._SL160_.jpg)
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Pokémon Legends: Z-A Standard - Nintendo Switch [Digital Code] | $59.99 | Buy on Amazon |
| 3 |
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Pokémon Legends: Z-A - Nintendo Switch 2 Edition | $65.00 | Buy on Amazon |
See Nintendo Support for the DLC content and availability information, and Nintendo’s Mega Dimension page for compatibility and the base-game requirement.
Unlock both Mega Raichu stones
- Complete Side Mission 2. Nintendo Life lists this as one of the prerequisites for Side Mission 139. Nintendo Everything reports that this mission involves a Pikachu trade.
- Complete Side Mission 108. This is the other reported prerequisite. Nintendo Everything says the NPC trade in this mission involves a Raichu.
- Find the yellow Hyperspace portal offering Side Mission 139. Look for “The Dauntless Raichu Duo.” Nintendo Life says it appears in a random yellow Hyperspace portal, so there is no confirmed fixed city location or guaranteed portal spawn.
- Complete “The Dauntless Raichu Duo.” Finishing the mission is reported to award both Raichunite X and Raichunite Y, which unlock Mega Raichu X and Mega Raichu Y.
The precise mission sequence and portal information come from Nintendo Life’s walkthrough; Nintendo’s official DLC listing confirms the stones are included but does not specify this quest route.
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#1 Best Overall
- 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
What to expect in the Raichu Duo battle
Nintendo Everything describes the mission as a two-on-one battle in which you use one Pokémon against both opposing Pokémon, which it reports are level 115. Treat those encounter details as guide-reported information rather than an official Nintendo specification. If you are struggling, bring a Pokémon you trust for a difficult fight and be ready to manage attacks from both opponents.
For the prerequisite trades and battle description, see Nintendo Everything’s Side Mission 139 guide.
Quick Recap
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.
Rank #2
- 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.
Why the stones may not be appearing
- You do not own the DLC: the Mega Stones are part of Mega Dimension; the base game by itself does not provide them.
- A prerequisite is incomplete: check that both Side Missions 2 and 108 are finished before searching for Side Mission 139.
- You are checking a fixed location: the cited guide describes the mission as appearing through a random yellow Hyperspace portal, not at one set city location.
- You have not completed the duo mission: the guide-reported reward is granted for finishing Side Mission 139.
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