The creatures in Resident Evil: Revelations are the result of the T-Abyss virus; the combination of the T-virus with a virus found in a type of deep-sea fish. it was utilized as a weapon by a bioterrorist group Il Veltro.
Regular enemies
Ooze
The ooze are the most common enemies in the game. They are the result of a human male infected by the virus. There are four different types of Ooze. Unlike most zombies from the previous games, they don not require eating flesh, instead drinking the blood of their victims.
Standard Ooze
Only attacks by grabbing opponent and sucking the victim's blood.
Pincer
An Ooze with long claw-like arms. Slower but stronger than a standard Ooze.
Chunk
Creatures that resemble huge chunks of meat that only attack by exploding when they are near their victim.
Tricorne
A type of Ooze that shoots bone-like projectiles, like bullets.
Sea Creeper
This creature is the result of a human female infected with the T-Abyss virus.
Fenrir
Wolves infected by the t-abyss virus. They are the weakest creatures in the game.
Globster
Formerly were Il Veltro member on the Queen Dido that have infected themselves with the virus. While some of them died in mid-transformation, others had managed to survive and thrived in water.
Ghiozzo
A fish infected by the T-Abyss virus. A Fish based B.O.W.
Farfello
Hunter-series based BOW. resulted when a normal hunter is administered with the T-Abyss
Scarmiglione
Bosses
Scagdead
Created from a human who exhibited a
Draghignazzo
Malacoda
Jack Norman
The leader of the terrorist group Il Veltro. He injects himself with the T-Abyss virus, becoming "Ultimate Abyss"