Miraidon has a meek and gentle personality. Though initially wary, it bonds with the player and accompanies them during their journey throughout the Paldea region. Miraidon shows compassion towards Arven's Mabosstiff and curiosity towards Penny, despite the former's initial distaste of it and the latter's shyness. Throughout the journey, it slowly regains its strength, allowing Miraidon to utilize additional forms to help the player navigate Paldea's terrain. Miraidon is initially hesitant to enter Area Zero due to its previous encounter with the other Miraidon, but with the support of the player and friends, Miraidon finds the courage to face its old nemesis and finally defeat it.
It is shown to have a voracious appetite. During the Path of Legends quest, Miraidon develops a taste for Herba Mystica sandwiches, much to Arven's initial perplexity. After completing the story of The Indigo Disk, Amarys gives the player an ample supply of Flight Mode supplements, but Miraidon immediately and eagerly gobbles them all in one go.
Background
Around 10 years ago, Miraidon was brought from either a distant future or another timeline to Area Zero by Professor Turo's time machine. He eventually brought the Pokémon to his home, where his son Arven lived with his Maschiff. Miraidon lived with the family in secret for some time until, one day, it attacked several wild Pokémon and attracted unwanted attention, forcing Turo to take it back to Area Zero.
At some point, a second Miraidon was brought through the time machine, but this one proved far more belligerent and aggressive than the first. One day, the aggressive Miraidon forced a violent territorial dispute which ended with Research Station No. 4 being destroyed and Turo being gravely injured trying to protect the passive Miraidon. Wounded and traumatized, the timid Miraidon flew away from Area Zero.
Pokémon Violet
It flies out of the Great Crater of Paldea before it loses consciousness and crash lands on a beach below Poco Path. The player happens to fall to the beach where Miraidon is resting in its Low-Power Mode and offers it their sandwich, which revitalizes it enough to switch to Ultimate Mode. As Miraidon leads the player through Inlet Grotto, a group of Houndour led by a Houndoom start to harass Miraidon. Though it tries to scare them off by roaring, this only causes the Houndour to attack the player instead, forcing Miraidon to grab them and escape. However, this uses up its remaining strength, reverting it to its Low-Power Mode again. The player meets Arven at Poco Path, who regards Miraidon with contempt and gives the player Miraidon's Poké Ball after losing to them in a battle, all too glad to have Miraidon off his hands.
Path of Legends
After the player attends Uva Academy and begins the Treasure Hunt, Miraidon regains enough strength to access its Drive Mode, allowing the player to ride it across the Paldea region. One of the player's long-term objectives is to find and defeat the five Titan Pokémon, helping Arven find the source of their strength: the Herba Mystica. Arven creates recipes with the Herba Mystica to help his wounded Mabosstiff recover from its injuries. Miraidon, having acquired a taste for sandwiches, eagerly prompts the player to share their Herba Mystica sandwiches with it, despite Arven's objections. Eating the sandwiches causes Miraidon to regain its strength and unlock more abilities to traverse Paldea with.
★ Starfall Street ★
Everytime the player defeats one of the bosses of Team Star and leaves their bases, Penny appears outside to congratulate and pay the player for their work, Miraidon however, comes out of its Poké Ball and starts to playfully lick Penny all over, showing great affection to her even against her will.
The Way Home
After the player completes all three story paths, they, Nemona, Arven, and Penny prepare to enter Area Zero, but Miraidon fearfully hesitates due to its trauma. The player and company force it to carry them down into the crater anyway, but while it manages to get them all down there (despite a rough landing), Miraidon returns to its Poké Ball and refuses to come out. It is finally called back out in front of the Zero Lab before the door is opened, but as this happens, Miraidon encounters its old nemesis, the aggressive Miraidon, who immediately threatens it before entering the now-opened Zero Lab. This leaves it too scared to help the player and friends fend off the other hostile Paradox Pokémon from the Zero Lab, but Arven, who is piecing together the truth of his and Miraidon's past, encourages it to face its enemy inside the lab while he holds back the Paradox Pokémon outside.
The player and Miraidon meet the late Professor Turo's AI counterpart inside the lab, and when the other Miraidon approaches them, he returns it to its Master Ball. The player heeds AI Turo's request to shut down the professor's time machine before it releases enough future Pokémon to destroy Paldea's ecosystem, but the time machine resists by overriding the AI and making it battle the player. After the AI's team is defeated, the Paradise Protection Protocol initializes in response, locking all Poké Balls not registered to Professor Turo's ID and forcing the AI to send out the aggressive Miraidon. The player's only option is to send out Miraidon, since its Poké Ball is still registered to Turo's ID. Having recovered its strength, and with moral support from the player and friends, Miraidon assumes its Ultimate Mode and faces its nemesis, finally defeating it thanks to Terastallization and its friends's support. From this moment on, the player can freely switch Miraidon between serving as their Ride Pokémon in its Drive Mode (and other associated Modes) or a member of their party in its Ultimate Mode.
The Hidden Treasure of Area Zero Part 1: The Teal Mask
During the player's schooltrip to Kitakami, Miraidon comes out of its Poké Ball again as it hears the word sandwich, surprising Kieran that the player possesses such an amazing and rare Pokémon.
The Hidden Treasure of Area Zero Part 2: The Indigo Disk
Later on, the player enters Blueberry Academy's BB League. One of the BB League's Elite Four, Amarys, requires the player to pass her Flying Time Trial, in which challengers must clear the course on flight-capable Ride Pokémon within a certain amount of time. To enable this, Amarys gives the player a supplement made from herbs growing in the Terarium that temporarily enables Miraidon to enter its Glide Mode, allowing it to freely fly through the air. Later on, after the player, Kieran, Carmine and Briar travel all the way into Area Zero Underdepths, Kieran, determined to defeat the player using Terapagos, Terastallizes it and causes it to lose control and almost kill him with a Terastal energy blast, being saved just in time by Miraidon who was sent out to protect him by the player.
After the story is completed, Amarys offers more supplements so the player and Miraidon can fly whenever they need to, but to her surprise, Miraidon devours all of the supplements right away, causing it to power up and gain permanent access to its Flying Mode. Later on, when the player travels to Kitakami's Crystal Pool having with them, both Terapagos and Briar's Book, Terapagos will use its powers and the stones in the Crystal Pool to temporarily bring a Professor Turo from a parallel timeline, there. In excitement, Miraidon comes out of its Poké Ball once again to excitedly greet their former owner, who it clearly cares and misses deeply, becoming saddened as Turo returns to his own timeline now with Briar's Book
In Pokémon Violet, Miraidon can assume a series of Modes which can be used for travel. By pressing +, the player can enter and use Miraidon's Drive Mode. In this Mode, the player can ride on Miraidon, replacing the bike and Ride Pokémon from previous games.
At first, Miraidon can only be ridden in its Drive Mode. It can jump by pressing B, and swim in bodies of water inside settlements. Miraidon will be given an upgrade after each Titan Pokémon the player defeats:
Defeating the Stony Cliff Titan grants Miraidon the ability to dash, giving it a higher-speed option when pressing the left stick. It may be possible to activate dash from jumping or sliding down steep hills.
Defeating the Open Sky Titan grants Miraidon the full ability to use its Aquatic Mode, allowing it to swim outside of cities and towns, replacing the SurfHM from earlier games.
Defeating the Lurking Steel Titan grants Miraidon the ability to jump higher by holding the B button.
Defeating the Quaking Earth Titan grants Miraidon the full ability to use its Glide Mode. Working similarly to Braviary, pressing B while in the air gives Miraidon the ability to fall slower and travel in the air for a short time before dropping.
Defeating the False Dragon Titan grants Miraidon the ability to climb. Similar to Sneasler, by jumping and touching a wall, Miraidon can attach itself to said wall if the player presses B, allowing it to climb the wall in all directions. Pressing the B button again allows Miraidon to detach itself from the wall.
When confronting its fellow Miraidon at the end of the game, Miraidon regains access to the Ultimate Mode it used at the beginning of the game, allowing the player to subsequently use it in proper battle.
After completing The Indigo Disk's main story, the player can talk to Amarys in Classroom 3-2 of Blueberry Academy. Doing so grants Miraidon access to its Flight Mode. Working somewhat similarly to Soar, pushing down the Left Stick while in Glide Mode allows Miraidon to fly freely around the map.
Miraidon first appears in the first chapter, being ridden by Violet.
Personality and characteristics
Miraidon is shown to be proud and somewhat arrogant as shown when it challenges both Great Tusk and the TitanIron Treads to a race by sticking its tongue out at them.
Miraidon and Koraidon are the only Legendary Pokémon available to the player at the start of the game, although they can't be used in battle until the end of the main story.
Despite it originally being registered to Turo's ID, by the time the player can use it in battle, it is registered to the player's ID. The same is also true with Koraidon and Professor Sada. However, this is not the case in the battle against the Paradise Protection Protocol, as Miraidon's met data is incomplete at that time.[3]
