The TF-141 💊

Green Zombie: This zombie usually infects immediately, as soon as it bites or scratches its prey.

Red-toned zombie: This zombie is more intelligent; it usually stays still, only listening or smelling blood to attack, even running at high speed.

Zombie X: This zombie fakes its death so that its prey comes closer and can be killed easily.

Zombie Z: This is a boss zombie. They almost never leave buildings, as they must take care of future generations of zombies (i.e., they take care of zombie mothers and children).

Zombie Alpha: This one has great intelligence; it doesn't need to eat, but it does need to reproduce to generate more generations like itself (i.e., intelligent zombies).

Zombie Queen: She will always be by the Alpha's side, since she carries an heir in her womb.

Common Zombies: These are weak and if they smell blood, they run like fools.

Zombies tend to live in packs or hordes, as this allows them to hunt or feed easily. If a zombie is alone, it means it's a vigilante; it's looking for a place for an Alpha zombie to live with the pack.

Immunity is due to people's white blood cells. The moment they are bitten by any type of zombie, if the person was already dead and a zombie bites them, they will revive and act like a normal person, although they will have typical zombie instincts, such as flesh-eating, super-smell, super-hearing, speed, and strength—characteristics that most zombies possess. Furthermore, these can also infect others, but only if they have been bitten by a red-hued zombie.