In the episode "Instrument of Destruction", Skull shows he is an adept classical pianist by playing Chopin's Revolutionary Etude. While Skull enjoyed classical music, it was something of a hidden shame behind his tough guy image. Fearing mockery, he kept his talent hidden even from Bulk. This moment shows that the Rangers thought of Bulk and Skull as their friends and vice versa, when Skull confides in Adam about his talents and He offers him his support, saying Bulk would do the same if he were truly his friend. After seeing Skull perform at a recital, Bulk was honestly moved and praised his friend, joining him on stage to applaud him.