Demons are either Hellborns or Sinners which have some similar abilities but don't share all and they can come in many different shapes and sizes. Hellborn are demons that were born in Hell, they haven't actually died and gone to Hell like the Sinners. Hellborn can be different species and the current known ones are Imps, Hellhounds and Succubi. Sinners are beings that have died and gone to Hell which they can take the form of animals, inanimate objects such as a TV and tend to share some properties of the given form such as a snake with venom.
The hierarchy of Hell is separated into "classes" and their level of power follows this hierarchy:
King and Royalty: Lucifer Magne and Charlie Magne
The Seven Deadly Sins: N/A
Succubi and other Demons: Verosika Mayday
Immortality: Type 2 (Demons are stated to be extremely resilient being able to survive excessive damage to their bodies), Type 3 (Demons are able to regenerate their limbs and have their whole bodies crushed), Type 5 (Demons will leave a dark energy behind after they've been killed which will possess any inanimate objects in its surroundings and only an angel's weapons being capable of truly killing them, resulting in their souls ceasing to exist).
Resistance: Fire Manipulation and Heat Manipulation (Demons have been shown to be unaffected by fire and can stand inside with no issue from the heat shown by Niffty, Blitzo and Millie). Disease Manipulation (Though it's unconventional as Demon can still get diseases and illnesses but will not die as it is only meant to increase their suffering). Poison Manipulation (Demons are unaffected by poisons and venoms), Biological Manipulation (Verosika was unaffected by her drink which mutated a fish upon coming into contact).
Longevity: Hellborn are stated to not be immortal and will age but at a very slow rate.
Unique Hellborn Species Powers
Empathic Manipulation: Succubi and Incubi have the ability to enhance sexual desires in humans by exuding a supernatural allure, allowing them to seduce their targets and Verosika can trigger sexual hormones in people when she's singing.
Immortality: Type 1 Sinners no longer age from the day they died.
Unique Sinner Powers
- Helluva Boss: Season 1: Episode 6: Truth Seekers
- Helluva Boss: Season 1: Episode 3: Spring Broken
- Hazbin Hotel: Pilot
- Helluva Boss: Season 1: Episode 1: Murder Family