The power to undergo a transformation into a form with demon-like abilities, powers, skills, and traits. Variation of Mode Switching. Opposite to Angel Mode.
Devil Trigger (Devil May Cry series)
The user is able to enter a state which allows demon-like abilities, skills and traits with demonic capabilities and powers that transcend all of the users basic limits whether physical, spiritual, mental and so on.
Allen Francis Doyle (Angel) can freely shift into a demon mode due to his half-Brachen demon heritage.
Rodin (Bayonetta) in his demonic form, Rodin the Infinite One.
Belthazor (Charmed), Cole Turner's demon mode.
Chrono (Chrono Crusade) in his demon form.
When he was stabbed by his Rebellion, Dante (Devil May Cry series) became able to access to his Devil Trigger. With it he is able to assume his full demonic form, gaining an increase in strength, strength, demonic power, and healing factor.
When he embraced his demonic heritage, Vergil (Devil May Cry series) became able to access his Devil Trigger. With it he is able to assume his full demonic form, gaining an increase in strength, strength, demonic power, and healing factor.
When he came in contact with the Yamato, Nero (Devil May Cry series) was able to access his Devil Trigger. However, instead of a demonic form, Nero gains a translucent shadow of a demon that fights as he does while still retaining the increase in strength, speed, and healing factor.
Ash Williams (Evil Dead: Regeneration) can transform into a powerful deadite, Bad Ash, by absorbing demonic energy from Deadites.
InuYasha (InuYasha) transforms into a full yōkai upon losing Tessaiga.
Rikuo Nura (Nura: Rise of the Yokai Clan) becomes a powerful demon during the night.
Yusuke Urameshi (Yu Yu Hakusho) in his demonic form.