A Davy Bones is first encountered by Lemy and Allay in the Ghost Cave. He attacks by shooting blue flames. If a tree friend is hit by such flame, he/she loses two health points. After shooting him enough times, the skeletal sea creature explodes.
Despite being a sea creature, he's encountered mostly on dry land in HTF Origins. Unlike his original incarnation in the Donkey Kong games, there can be more than one Davy Bones in HTF Origins.