Merkabah

Merkabah (メルカバ, Merukaba) is a demon in the series.

History
The throne chariot of God. It is a four wheel vehicle driven by the chayot which are living creatures with four wings and four faces. According to Ezekiel it is a chariot made of many angels driven by the "likeness of man". Merkabah is made of many Ophanim, Seraphim, and Chayots.

Appearances

 * Shin Megami Tensei IV: Herald Race, Final Boss (Chaos and Neutral routes); Ally (Law route)
 * Devil Children Red Book
 * Devil Children Black Book
 * Devil Children White Book
 * Devil Children Black Book/Red Book (PS)

Shin Megami Tensei IV
After the events of the Monochrome Forest in the Law Path, Jonathan and Flynn awaken at the new Cocoon of Shane Duque and are greeted by the Four Archangels, who call the place the new Mikado Castle. They are informed of Lucifer's return and of how the Yamato Perpetual Reactor has been turned on, releasing hordes of demons upon  Tokyo, who would seek to break free through the Eastern Kingdom of Mikado.

Unwilling to allow this, the four have sealed Naraku, but they lack the power to strike against Lucifer. To reach the necessary power to do so, they ask one of the two prentices to fuse with them to summon the Chariot of God, Merkabah, a being powerful enough to fight Lucifer himself. Though Jonathan is horrified at the archangels' plans of annihilating Tokyo and at the fact whoever enters the fusion will be killed in all but name, the prospect of ensuring Mikado's safety and stability for all eternity is enough to convince him to enter martyrdom by sacrificing himself to Uriel, Raphael, Gabriel, and Michael, summoning Merkabah.

In the Law route Flynn and Merkabah defeat Lucifer, as well as Isabeau, and in order to prevent further corruption of the people of Mikado, destroy Tokyo with a black hole, killing themselves in the process to purge their own taint. In the Chaos route, Flynn and Lucifer defeat Merkabah in order to overthrow the millenium kingdom. In the Neutral route, Flynn and Isabeau kill Merkabah to retrieve the Great Spirit of Goodwill in order to reawaken Masakado.

Boss
The same status is used by both forms.