When Skullys mature, they become Skullions. According to Daroach, this process takes 100 years; implying that the Skullys are immortal. Daroach also mentions that the Skullys used to hide away in darkness until Necrodeus acquired his staff, then the Skullys changed their ways. Skullys are featured in the sub-game Strato Patrol EOS, where they either try to snatch Kirbys or powerups away, or come floating with one in their hands. Shooting such a Skully down adds one Kirby to the total Kirby count. Dethskullks, enemies from Kirby and the Rainbow Curse, bear a noticeable resemblance to Skullys.