As its name implies, Vulkin resembles a volcano, with the conical structure that is a common characteristic of volcanoes. Lava can be seen leaking from its crown, and little puffs of smoke can be seen spewing out steadily. Vulkin usually has its eyes closed and a permanent blush. Due to its cheerful attitude, it is usually seen smiling. Vulkin is arguably the kindest "enemy" encountered by the protagonist, as it maintains a positive, happy-go-lucky nature and loves to support beings around it.