Zombie (common): They are the most prevalent enemies in the game. They are basically people infected by a strange viral agent who have died and mutated. They are slow, some are weaker and some are stronger. To survive they feed on any type of animal and even human flesh. They can be avoided, but in large groups they are extremely deadly. They can surround their victim and kill them quickly.

Red Zombie (Terrible Butcher): They are a stronger mutation than traditional zombies. They are more violent and faster, their evolved jaw is stronger than that of a pit bull dog. They are reddish in color and can cause many problems as they are more resistant to gunfire and explosions.

Brainsucker: They are a variation of the common zombie mutation, they are a species of giant hunting insects. Its main meal is human brains. Your attack can cause paralysis. They are resistant to small caliber weapons (ex.: 9mm). Its skin is thicker preventing perforations in vital organs.

Zombie Dog: These are dogs that have been exposed to the viral contaminant by feeding them rotten zombie meat. They're not as tough, but more enemies run faster. There are more resistant versions, but they are less common.

Idiot Zombie: They are extremely dumb enemies. Walk in predetermined directions. They only attack when something touches them, but they are very resistant, they need high-caliber weapons to stop them.

Poisonous Zombie: They are a special mutated viral agent modified in the laboratory. When attacking (biting, nail spitting) causes poisoning.

Common Worm: These enemies are small worms that were exposed to the same viral agent that created zombies. They are fast and in groups manage to destabilize their enemy. But they are weak and die easily.

Poisonous Worm: They are the same thing as common worms, but when biting they cause a poisoning that causes death if not treated.

Amazement: An extremely tough blind enemy. He is blind but listens very well. When alerted they can quickly kill the player. Its origin is a bit mysterious.