Physically they are humanoid in shape, but taller than humans (around 2.20 m (7 ft 3 in) or 2.40 m (7 ft 10 in)) and with a skull very different in that his head has small eyes green, red or yellow only able to see the spectrum of infrared and ultraviolet light, nose slits has a huge mouth with jaws mobile in the form of 'x', a well developed ear as expected in a hunter and superhuman strength.
It appears that your natural vision is somewhat flawed, but have technology to see the different spectra of light and heat of the medium in which they occur. Breathe 1% more oxygen and 4% more nitrogen than humans and are able to adapt to Earth's atmosphere until a week or more, depending if they have respirar.3 apparatus is based on his blood and have carbono4 a partial ability to neutralize the acid xenomorph. His life is also more durable because they have the ability to increase the human lifespan.
The canyon is very simple, take the head of a Hordika and remove the "mask" and placed instead of the "right eye" Mistika put a propeller on the bottom of the canyon. Place the piece to be used as a "hand" with a small bar and place it between the hand a small red tube, down tube red tube takes a small input connector and is ready!