Goobs are standard ghosts in Luigi's Mansion 3. They are the most common ghosts in the game, as well as the first ghosts to be fought. Behaving mischievously and punching to attack, they bear resemblance to Greenies from Luigi's Mansion: Dark Moon. Goobs may also perform a whirling spin attack. Each has 100 HP.
Like Greenies, Goobs can also use weapons and objects to defend themselves, such as sunglasses and shields, which can be vacuumed away or pulled away with a Suction Shot. There are also Golden Goobs similar to Gold Greenies which drop more treasure, as well as another variety that drops a gem when defeated. There are also smaller variants called Mini Goobs which appear in hordes and can be sucked up quickly.
At the start of the game, when Luigi enters the Grand Lobby, there are Goobs disguised as human staff. These ghosts are seen later on in their true form the next time Luigi enters the lobby, boarding up the front doors to prevent him from escaping. Goobs are encountered normally throughout the game, usually in groups of two or more.
Special Goobs with unique behaviors appear on certain floors and in boss fights.
The end of the game reveals the Goobs were being brainwashed by King Boo's crown gem, as they and the other ghosts quickly regain their senses and become friendly once the gem vanishes from Luigi's hands. Among the rest of the game's standard ghosts (save for Trappers), Goobs are seen working with the protagonists to rebuild the fallen hotel through a series of pictures presented during the closing credits.
Each variant has 200 HP instead of 100. Otherwise, they are the same as regular Goobs; the only difference is the design and clothing, which does not affect their powers.
Appearing on Tomb Suites Scarescraper floors, Agoobises are Goobs decked in the regalia of ancient Egyptian royalty. Their name is derived from Anubis, the Egyptian god of the afterlife.
Appearing on Castle MacFrights Scarescraper floors, Sir Goobs are Goobs outfitted in medieval knights' shining armor. Their name incorporates the formal term of address for a male knight.
Appearing on The Dance Hall Scarescraper floors, Neon Goobs are Goobs decorated with glowing neon lights in jagged shapes.
Appearing on The Spectral Catch Scarescraper floors, Mergoobs are Goobs dressed as mermaids, wearing seashells and bearing scaly green patterns on their tails. Their name includes the prefix mer- denoting the sea and marine life.
Appearing on The Spectral Catch Scarescraper floors, Swabbie Goobs are Goobs wearing the striped clothes of a sailor or buccaneer. Their name is based upon a nickname for a low-ranking crew member aboard ship.
Goob the Magnificent
Appearing on Twisted Suites Scarescraper floors, Goobs the Magnificent are Goobs attired in a magician's tuxedo. Their name is inspired by many magicians' self-laudatory stage names.
Appearing on Twisted Suites Scarescraper floors, Pantogoobs are Goobs costumed as performing mimes, with white and red face makeup, dark striped shirts, and bright red neckerchieves. Their name is a portmanteau with pantomime, voiceless musical comedies popular in the 19th century.
Appearing on Unnatural History Museum Scarescraper floors, Skelegoobs are Goobs draped in luminous skeleton garb.
Names in other languages