Evolution

Evolution, mutation or transfiguration is the process of one demon or persona to change form into another, often the more powerful one and cannot be obtained via conventional means.

Shin Megami Tensei III: Nocturne
Specific demons are evolved from another specific demons. These demons are unique that they cannot be fused in Cathedral of Shadows but all neutral demons in the list actually appear in random encounter and can be recruited normally. Evolving a demon to the next form requires the prerequisite demon has learned the last skill as it levels up and the protagonist has reached the resultant demon's level minus 4 at least. If the resultant demon appears in the formal boss battle, that battle must be fought first. When all requirements are met, the said demon will always ask player's permission to evolve into the next demon, even if player has denied it previously.


 * Lvl 10 Fairy High Pixie# from lvl 6 Fairy Pixie
 * Lvl 56 Night Queen Mab# from lvl 16 Fairy High Pixie
 * Lvl 80 Night Lilith# from lvl 8 Night Lilim
 * Lvl 22 Avatar Makami from lvl 17 Beast Inugami
 * Lvl 24 Dragon Gui Xian from lvl 18 Snake Nozuchi
 * Lvl 28 Holy Senri from lvl 22 Beast Nekomata
 * Lvl 28 Yoma Karasu# from lvl 24 Yoma Koppa
 * Lvl 38 Genma Kurama from lvl 33 Yoma Karasu
 * Lvl 30 Vile Arahabaki from lvl 24 Brute Momunofu
 * Lvl 33 Wargod Valkyrie from lvl 27 Yoma Dis
 * Lvl 37 Snake Raja Naga# from lvl 32 Snake Naga
 * Lvl 44 Dragon Long from lvl 38 Snake Mizuchi
 * Lvl 46 Genma Hanuman from lvl 42 Yoma Onkot
 * Lvl 54 Fury Wu Kong from lvl 50 Genma Hanuman
 * Lvl 52 Genma Cu Chulainn from lvl 48 Fairy Setanta
 * Lvl 52 Yoma Efreet# from lvl 48 Yoma Jinn
 * Lvl 57 Lady Parvati from lvl 52 Megami Sati
 * Lvl 58 Wargod Ganesha from lvl 53 Yoma Purski
 * Lvl 63 Avian Garuda from lvl 58 Beast Sparna
 * Lvl 64 Entity Albion* from lvl 60 Jirae Gogmagog
 * Lvl 73 Seraph Uriel* from lvl 68 Divine Throne
 * Lvl 74 Lady Skadi* from lvl 69 Megami Scathach
 * Lvl 77 Tyrant Aciel* from lvl 74 Tyrant Abaddon
 * Lvl 95 Tyrant Beelzebub (fly form)* from lvl 86 Tyrant Beelzebub


 * * Story boss
 * Neutral demon

Persona 2
Many personas have a small chance of mutating into another persona of the minor arcana of closest level after reaching rank 8 for performing fusion spell to finish the battle. When the said persona shows sign of transformation, player need to bring the persona to Velvet Room and reserve the persona in its stock.

Aside from personas of the minor arcana, there are other unique personas can only be obtained once via mutation:
 * Persona 2: Innocent Sin
 * Lvl 57 Fortune Chronos from lvl 42 Fortune Hermes
 * See also: Custom Persona


 * Persona 2: Eternal Punishment
 * Lvl 31 Moon Maia Custom from lvl 3 Moon Maia (triggered by correct dialogue choice)
 * Lvl 72 Emperor Lugh from lvl 46 Sun Il-Dana (requires rumor from Manannan.)
 * Lvl 74 Justice Pallas Athena from lvl 64 Priestess Scathach
 * Lvl 74 Death Mot from lvl 68 Tower Seth
 * Lvl 83 Judgement Michael from lvl 68 Judgement Amurdad (2nd cycle)
 * Lvl 88 World Shokuin from lvl 68 Strength Wong Long (2nd cycle)

Persona 3 and Persona 4
All ultimate personas of the teammates besides protagonists are transfigured from their previous personas. The process is triggered automatically in Persona 3 as the story progress to specific event. In Persona 4, it is achieved by reaching max rank of individual teammate's Social Link.