Gem Goob

is a kind of special ghost and a form of Goob in Luigi's Mansion 3, it can be found on every floor of The Last Resort but not in ScareScraper. Gem Goobs have can have 80, 100 or 120 HP.

Appearance
Gem Goobs have blue body with white eyes and mouth, same as Goobs, but Gem Goobs have crystalline body which regular Goobs don't have. They often hide in secret places like Golden Goobs.

In the game
If Luigi finds one Gem Goob, it will run around screaming, trying to escape, Gem Goobs do not take damage while being sucked and will only take damage if they are slammed. Unlike the other floors which only has one Gem Goob, the 13 floor which is the Fitness Center has two gem Goobs.

Trivia

 * Unlike Golden Goobs, Gem Goob can be defeated anytime if Luigi revisits the room and will never manage to escape if they are found.

See also:

 * Goob
 * Mini Goob
 * Speed Goob
 * Bomb Goob
 * Regen Goob
 * Golden Goob
 * Twirling Goob