Lucifer

Appearances

 * Persona 2: Eternal Punishment: Devil Arcana
 * Persona 3: Star Arcana
 * Persona 3: FES: Judgement Arcana, Star Arcana (as Helel)
 * Persona 4: Judgement Arcana, Star Arcana (as Helel)
 * Shin Megami Tensei:Support Cast
 * Shin Megami Tensei II: Chaos Boss, Maou Clan
 * Shin Megami Tensei III: Nocturne: Major character/Ultimate Boss

Shin Megami Tensei
Lucifer is the Chaos alignment, which associates with freedom and war. The protagonist can choose the Chaos alignment for freedom of choice, thoughts and actions. However, this freedom can lead to a vast amount of suffering and anarchy, leading the world into a primal state of unsuppressed vice and survival of the fittest. Lucifer later took the name of Louis Cyphre (a psuedonym of 'Lucifer'). The protagonist finds him after the Great Destruction, where Louis Cyphre observes the protagonist's actions. He hints at a much greater knowledge of what is happening, and seems to befriend many demons quite easily.

At the end of the Chaos alignment path Lucifer appears in his true form to offer his congratulations to the protagonist for defeating the God of Law and resurrecting the olden gods, but warns that the "true enemy" still exists.

Shin Megami Tensei II
In Shin Megami Tensei II, Lucifer is a well-respected figure amongst Demons. He is detested by YHVH and angels and he hates them in return. Lucifer represents the Chaos Path, where emotions are over cold logic, in 'purpose justifies the means'.

Throughout the game, Lucifer, aware that Hawk is part of the Messiah project, and thus, many demons under his commands would assault Hawk. As the game progresses, Lucifer became intrigued by the protagonist' capabilities of defying God, and questions whether he is the incarnation of Satan, the one who would Judge them all. However, Lucifer was later disappointed to learn that Hawk isn't Satan, though Lucifer himself would sense the imminent signs of Satan's coming.

Since Satan was sent by YHVH to cleanse the demon world, Lucifer, as the lord of the demonic world could not bear to see it's destruction. He offers Hawk an alliance, and decides to face Satan and finish their battle once and for all. Should Aleph chooses the Chaos Alignment path, Lucifer will join him in order to help protect the denizens of the world from Satan's judgment upon the world.

Shin Megami Tensei III: Nocturne
Lucifer plays an important role in Shin Megami Tensei III: Nocturne, where he takes the form of a blond child and and an old man. They are accompanied by an Old Nurse, and a young woman dressed in black mourner's garb respectively. Assuming the form of a child, Lucifer is first seen in Shinjuku Hospital, where he was intrigued in the protagonist, however, he disappears after the protagonist approaches him. After the Conception, to allow the protagonist to survive in a now demon-ridden world, he dropped the Magatama into the protagonist's forehead, allowing the insect to merge with the protagonist and transforms him into a demon himself. As the story unveils, Lucifer would assume the form of either an old man or the child, giving hints about the nature of Conception, and God himself.

Lucifer would play different roles depending on the protagonist's actions and the path he chooses. In the Neutral path, Lucifer himself was reminisced by the protagonist's decisions, as Lucifer himself once walk his own path and his decisions before and after his fall from grace. However, he warns and advices the protagonist to keep his demonic powers, as one day, the "true enemy" will come after him, just as what happened to Lucifer himself. An extra ending, accessible only by completing the bonus dungeon unlocks the sixth ending and "demon" path. After defeating Kagutsuchi, the two entity appears and tells the protagonist that he succeeded in breaking the cycle of destruction and rebirth, and thus, time itself is dead. The universe has been reverted to it's initial state of primordial chaos, and it has birthed the power built on death of death, symbolizing the protagonist. However, the blond child and the old man also tells the protagonist that God is furious upon the protagonist's actions, and he is forever cursed. Lucifer comforts the protagonist that he doesn't have to worry, as he now have the ability to conquer and shape the world under the laws of God. The blond child and the old man proceeds to tell the protagonist that he need to test the protagonist's limits, and the two entity fuses together and assume the form of Lucifer, challenging the protagonist to a battle.

Interestingly, despite not being named in the game, the old man and the child, both resembles Louis Cyphre in the form of a child and an old man, respectively.

Persona 2: Eternal Punishment
Lucifer appears as the ultimate persona of Devil Tarot in Persona 2: Eternal Punishment. He can be acquired by choosing Nate's route, where it can be purchased in Mu Continent. Lucifer, along with Satan is the ultimate persona, capable only to summon once players reached LV 99.

Persona 3
In Persona 3, Lucifer is the highest level Star Arcana Persona. He is available to be summoned if the player has completed the Rival Athlete Social Link. He appears in his angelic form from before his fall from grace.

Persona 3: FES
Lucifer appears as a persona of Judgment arcana, where he assumes the form of a fallen angel. The original angelic Lucifer, however, was renamed as Helel, the Hebrew name of Lucifer. The strongest 1-handed sword, "Lucifer's Blade" (Holy-Grail Lucifer in the Japanese version) can also only acquired by fusing Lucifer via the Weapon Fusion system.

Persona 3

 * It should be noted that Lucifer, renamed Helel does not learn "Victory Cry" in Persona 3: FES. The skill can only be acquired via inheriting from the predecessor Personae.

History
A fallen angel, whose name means "light-bringer", and the lord of demons in Judeo-Christian lore. His pride let him to revolt against God, taking a third of the heavenly host with him. He now waits for a second chance to challenge God.