Left: A human Grunt sent by the governy to kill all vitness.

Right: An alien grunt, very dangerus.

Left: A female ninja. This one is the fastest enemy in Half-life.

Right: An alien slave. It is'nt that hard but it shoots deadly lightnings.

Left: A Barnacle. It look like a rope and if you touch it, it will pull you into its mouth.

Right: A Bullsquid. Shoots a green liquid that's dangerus.

Left: A Gargantua. It's the most dangerus life form in half-life because it has a flamer.

Right: A headcrab. The most hatet lifeform. It's atacking your face.

Left: Is it a shark? Yes, mutatet!

Right: This ones is both a weapon and a life form. Throw it onto your enemys!

Left: A Tentacle. This one is hunting with it's ears so be quiet! Extremly dangerus!

Right: This is also a Tentacle but it is'nt that dangerus.

This is a scientist
with a headcrab controling
it's body. It has became
a Zoombie!!! Run for your
life!!