The Goblin Captain, also called the Dark Imp, is an enemy in Final Fantasy IV. It is ultimately just a more powerful Goblin. Other than appearing in large groups with other monsters, it does not present much of a threat.
goblin is a small, mischievous creature found in many European folk tales and legends. The word "goblin" comes from the Norman French word Gobelinus, the name of a ghost that haunted the town of Évreux in the 12th century.A
imp is "a small, mischievous devil or sprite."An
Captain and chief officer are overlapping terms, formal or informal, for the commander of a military unit, the commander of a ship, airplane, spacecraft, or other vessel, or the commander of a port, fire department or police department, election precinct, etc. Captain is a military rank in armies, navies, coast guards, etc., typically at the level of an officer commanding a company of infantry, a ship, or a battery of artillery, or similar distinct unit.