Skully is a skeleton, with the same body and skull face as all other skeletons from the 1990s. In his initial appearance in 6254 Rocky Reef, Skully had no distinguishing features and was just a generic skeleton. In subsequent appearances, his most unique feature is the black Morion Helmet that he wears on his head.
Skully guards the buried treasure at Rocky Reef, where he hides within a rock. Skully was also responsible for hiding the treasure on Volcano Island. Even while Black Jack Hawkins searches for it, Skully has hidden the chest well enough that he does not feel the need to spend much time guarding it. Instead, Skully spends his days practicing the popular sport of volcano diving whenever the volcano erupts, including his latest "Volcano Vault".
Skully, or at least similar-looking conquistador skeletons, is seen frequently in LEGO Island. One skeleton hides in a treasure chest in Captain Click's cave. Many conquistador skeletons can be found throughout the racetrack, including a massive skeleton that constantly swings its legs to knock racers off the track. Skully can also be seen participating in the ending celebration.
- Captain Click uses the same design as Skully in the Game Boy Colour version of LEGO Island 2: The Brickster's Revenge, although he later received a different unique design in Soccer Mania.
- The Conquistador's skeleton, featured in the Indiana Jones theme, is similar in design to Skully, as they are both skeletons wearing the same Morion helmet.
- 6254 Rocky Reef
- 6232 Skeleton Crew
- 6248 Volcano Island
- 6281 Pirates Perilous Pitfall
- 5731 LEGO Island