Bosses are described in the next subchapter.
Common enemies
Assault Trooper
Most basic units, Privates among the alien forces.
They can be distinguished by green armour covering their chest and crotch.
They are equipped with AT Lasers and jetpacks that allow them to fly if only there is enough space.
The first and weakest enemies you will come across.
They are also have a better gun, the AT Captain Laser.
Sometimes Enforcers appear equipped with big shields held in the left hand.
Assault commander
Leaders of the assault unit (further referred to as “fatties”).
They attack with rockets fired from their… butts.
They can also ram you with the moving blades and mutate normal people into Pig Cops.
They also often use pipe bombs which they sometimes drop after dying.
Another pop in of pigs are weapon-less units which charge and jump at you, attacking with claws.
Sometimes pigs fall into a berserker mode, regaining health and charging at you with claws.
Octabrain
Octabrains are flying octopuses with glowing eyes.
They can thrust items at you or shoot a telekinetic missile.
they explode when killed, making them dangerous even after death.
Octabrains can swim, so you will also meet them underwater.
Octababy
This little ugly creatures are Octabrains in larval stage.
They attack in groups and take a stab at jump at you with their claws.
They can swim as well, so be ready to come across them during underwater levels.
Pregnator
Pregnators impregnate abducted women and can be always found in “infected” areas.
They hatch from eggs growing on the ground, walls and even ceilings.
They attack similarly to Octababies but are also able to shoot acid from afar.
Alien Fighter
Small and fast alien ships.
They appear only in open areas and usually fly in groups of three.
Don’t waste rockets on them, as they are too fast for them.
Stationary machineguns work best.

Dropship
Large Dropships used to drop enemy forces.
Much more resistant than Fighters, they however don’t dispose much firepower.
They can be shot down using only rockets or stationary machineguns.
They can be shot down only using rockets or stationary machineguns.
They attack when you get close, but it can be stopped by shooting them.
They often appear accompanied by a glowing eye which serves them as their own.
Shoot the eye to neutralise the tentacles for a short while.
Neither the tentacles or the eye can be killed, only temporarily neutralized.
Rat
Normally not dangerous, they pose a threat once Duke gets shrinked.
They attack by jumping at you with their teeth and usually in groups.
One pistol shot is enough to kill them.
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