Scorpazoid

From Space Quest Omnipedia

Although not originally from that planet, the Scorpazoid has been found on planet Phleebhut. It attacks its enemies by slashing with its stinger, injecting them with an electro-plasmatic venom. Death comes quickly to those who are caught by it.

It has been said that Roger Wilco was killed by a Scorpazoid on his visit to the planet. However, although he may well have encountered one, his survival indicates that this is just a myth.