Spoiler warning: this article may contain major plot or ending details.
Games
Background
A long time ago, two Miraidon were brought to Paldea by Professor Turo's time machine. However, the second specimen was incredibly aggressive and attacked the first one, severely injuring it and causing it to flee.
Pokémon Violet
It flew out of the Great Crater of Paldea before crash landing on a beach below Poco Path. After awakening, a group of Houndour led by a Houndoom living in Inlet Grotto started to harass Miraidon. Though Miraidon tried to scare them off by roaring, this only caused the Houndour to attack the player instead, forcing Miraidon to grab them and escape.
Personality and characteristics
Miraidon showed a meek and gentle personality. Though initial wary, it bonded with the player and accompanied 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. Prior to entering Area Zero, Miraidon was still hesitant about entering due to its previous encounter with the other Miraidon. However, with the support of the player and their various friends, Miraidon joined them as they ventured into the crater, later helping protect the group from the other Miraidon.
During the Path of Legends quest, Miraidon developed a taste for Herba Mysticasandwiches, much to Arven's initial perplexity.
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 Miraidon 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 Swimming build, 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.
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 Miraidon to escalate the wall in all directions. Pressing the B button again will allow Miraidon to detached itself from the wall.
Lastly, 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.
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]
