Demon God (魔神 Majin) is an advanced state of being that can be taken on by Demons by gathering a lot of kiri or by having Mechikabura grant it to them. Majins capable of Absorption like Kid Buu can obtain the form by absorbing a Demon God.
Usage and power
In this state, the user's hair or horns rises, grows and becomes wilder and they gain markings near their eyes. The user also gains a tool (staff, hammer or sword) which they merge with when undergoing their next transformation. A Demon God can return to their base form if severely injured, as shown when Towa was knocked out by Broly Dark, though they can re-take their Demon God form at will once recovered. For some (such as Chamel) the Demon God mode consumes a lot of strength and cannot be used for long.
It takes time for the true power of the Demon God form to fully adapt to its user's body, notably when Salsa's power was not stabilized he could not even budge Out of Control Turles, but after it stabilized he could defeat even Dark Demon God Buu - who had absorbed Evil Demon Janemba.
When this form has fully stabilized, the user's ki and magic power both rise dramatically to the level of gods, and they are granted godly ki. However, despite his great power boost in the form Demon God Demigra was noticeably scared of the power that Ultimate Gohan possessed indicating that its power may be weaker than Ultimate Gohan's. However, after absorbing Tokitoki, Demigra's Demon God form became strong enough to go toe-to-toe with Super Saiyan 3 Goku (who had recently obtained the power of a Super Saiyan God).
At some point, around seventy-five million years before Dragon Ball: Xenoverse, the mage Demigra managed to gather a large amount of Kili and was permanently turned into a Demon God. Much later, the revived Mechikabura grants Towa, Putine, Gravy, Dabura and Salsa the Demon God state of being. Shroom also possess the state, being referred to as the "Death God".
By using every ounce of their divine power, a Demon God is also capable of a further transformation into a monstrous final form.
- Lucifer and Konats' Demon God are both referred to as Demon Gods, though it is unknown if they possess the same state as Demigra, or if this is simply a title. The latter is more likely as they do not have the special features that Demigra and Towa have as a Demon God.