How to Complete the ‘Massive Mass Outbreak in the Mirelands’ Request (Request 97) in Pokemon Legends: Arceus


Randrew Mendrico

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Drew is one of the game guide writers in PlayerAssist. He mixed his communications degree with his love for video games to help other gamers with different video game situations. Drew loves action-adventure, story or character driven role-playing games.


Pokemon Legends: Arceus is set in olden times in the Pokemon world when it was rare to find harmony between people and Pokemon. Set in the Hisui region, modern-day Sinnoh, you will join the Galaxy Expedition Team (Galaxy Team for short) as a member of the Survey Corps stationed in Jubilife Village. You will be tasked to meet every Hisui Region Pokemon to complete the region’s first-ever Pokédex.

How to Complete the 'Massive Mass Outbreak in the Mirelands' Request (Request 97) in Pokemon Legends: Arceus

The Galaxy Team will task the player to do missions in the game. Various people will also request help from the player. One of these requests is Request 97, titled the ‘Massive Mass Outbreak in the Mirelands.’ This guide will teach you how to complete the ‘Massive Mass Outbreak in the Mirelands’ request.

Massive Mass Outbreak in the Mirelands

To unlock this request, the player must first complete the ‘Massive Mass Outbreak in the Fieldlands’ Request, the 96th request in the game where the player must investigate the Massive Mass Outbreaks in the Obsidian Fieldlands as a request from Mai of the Diamond Clan.

After doing the requirements mentioned above, you can now start this request! To do that, head on to the hairdresser, beside Anthe in the Clothier and Choy in the General Store just across the player’s quarters on the right side of the Galaxy Hall, and outside, you will find Mai of the Diamond Clan, with her Munchlax, talking to Arezu. Approach them, and Arezu will tell the player that Mistress Calaba is waiting for the player.

Then, the screen will fade to black, and once it fades back, the player, Arezu, Mai, and her Munchlax, will be inside the hairdresser’s boutique with Mistress Calaba. Arezu will then say that she heard about the massive mass outbreaks. She thinks they are some Pokemon festival, in the same way, that the Clefairy get together and dance on nights with a full moon, which means that maybe it is a gathering of Pokemon that only happens when certain conditions are met which, in this case, are the rainstorms.

After selecting an answer to the prompt, Mai will ask Arezu if she has heard anything else then Arezu will say that she heard something weird from her friend from the Diamond Clan, which is that they saw a mass outbreak of Alpha Pokemon in the Crimson Mirelands. Then, Mai will say that Alpha Pokemon grouping together sounds dangerous, to which Arezu will follow up that even the Lady of the Ridge would be no match for a mass outbreak of alphas.

Mistress Calaba will then say that it is natural to worry about the unknown, which is why the player is investigating the matter for them. Mai will then tell the player that their next step is to examine the Crimson Mirelands. Then, the ‘Massive Mass Outbreak in the Mirelands’ started after that!

After that, Mai will ask the player if you are ready to head to the Crimson Mirelands with her. After confirming the prompt, the player will be brought to the Crimson Mirelands.

Upon arriving in the Crimson Mirelands, there will be a rainstorm, and Mai will say that it seems that a massive mass outbreak is starting in the area. So, she will tell the player to determine if the massive mass outbreaks in the area are the same as the ones in the Obsidian Fieldlands.

After that, Melli will appear and say that she has heard rumors that Mai and the player have been investigating the massive mass outbreaks and say that she has already solved the mystery and say that the reason there are massive mass outbreaks in the area is that the Pokemon want to give praise to her. Then, she will say that she will give the player a generous reward as thanks for proving her theory. Melli will then give the player 20 Aguav Berries and then leave.

After that, Mai will wonder where Melli obtained the Aguav Berries as Melli mentioned that they are a rarity in the Hisui region. However, Mai’s Munchlax will eat five of the Aguav Berries, and, suddenly, the player’s Arc Phone will start to beep as a response to Munchlax.

The player’s map will then show the locations of the massive mass outbreaks in the area, along with which Pokemon the player will encounter. After that, Mai will ask the player to investigate the massive mass outbreaks in the area so they can compare them to the massive mass outbreaks in the Obsidian Fieldlands.

To complete this request, the player must catch or defeat all the Pokemon from three massive mass outbreaks in the Crimson Mirelands.

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The player must catch or defeat all the Pokemon in the mass outbreak to finish investigating the area before the outbreak disappears. The player can give Mai’s Munchlax some Aguav Berries to find out what Pokemon are appearing at each massive mass outbreak while they are ongoing. In the player’s map, the Pokemon icons with a sparkle mark on the top left mean that it is a special mass outbreak, while Pokemon icons with an orange berry mark mean that the player may receive Aguav Berries in that mass outbreak. It is also worth noting that additional Pokemon may appear after the player completes the investigation

As the Massive Mass Outbreaks will only appear when it is raining and will disappear after some time, it is recommended to try out the three massive mass outbreaks nearest to the Mirelands Camp unless there are Pokemon in the massive mass outbreaks that you want to catch.

Once the massive mass outbreak ends, the player must wait for a new one. The player can restart the map several times until a new massive mass outbreak appears by returning to Jubilife Village and heading back to the Crimson Mirelands. Once the massive mass outbreaks are back, the player will not know the Pokemon that will appear in the massive mass outbreaks unless the player goes to it or Munchlax is fed with Aguav Berries.

After catching or defeating all the Pokemon from three Massive Mass Outbreaks in the Crimson Mirelands, head back to Mai, still a little bit east of the Mirelands Camp near the exit of the area and talk to her. Irida will appear and congratulate the player as she has heard that the player has finished investigating the Crimson Mirelands.

Mai will then say that Irida is here to help as what has happened twice now will likely happen again in the Cobalt Coastlands and other areas. She will then ask the player to demonstrate to Irida what has been keeping her busy by turning the investigation to the Cobalt Coastlands next. Mai will still wonder about her Munchlax’s connection to the massive mass outbreaks.

After a few more dialogues from Mai and Irida, Mai will say that she will wait for the player near the Front Gate of Jubilife Village so they can continue the investigation and reward the player with 20 Apricorns 30 Black Tumblestones, and 30 Iron Chunks for your efforts. The ‘Massive Mass Outbreak in the Mirelands’ request is now completed!

Now that you have completed the ‘Massive Mass Outbreak in the Mirelands’ Request, you can now try to complete other requests, complete missions, or complete Arceus’ task for you, which is to catch ’em all!

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