The Bloogs are a race of large one-eyed green aliens.
They stand about six feet tall, have clawed bird-like feet and can carry clubs. They have fangs and noticeably large purple tongues that often protrude. They are known to be only minimally intelligent creatures who are excessively interested in food. Despite being easily fooled, they are the dominant species on Fribbulus Xax. Bloogs can be difficult to stun and can wield their clubs with enough force to knock the wind out of anyone nearby.
The Bloogs were once conned into kidnapping Molly McMire, sister of Mortimer McMire, in exchange for knowledge of the location of the Stupendous Sandwich of Chungella IV. Despite this, the Bloogs are not believed to be especially evil, just dumb and hungry.
Description from the official manual:
Appearance in Keen GBC
Also appearing in Keen GBC, the Bloog are smaller than in Keen 6, but more intelligent and numerous. They have also created the Robo-Bloog. Their motivations are unclear, but probably involve another sandwich.