|This article's title is derived from disc or cartridge data|
|... because it was never named outside of its respective game's files.|
Walf appears to be a blue sea-turtle with added antennae on its head, making it somewhat resemble a beetle. Its head is peach-colored with a larger nose in Kirby's Return to Dream Land, but is blue with a smaller nose in Kirby: Planet Robobot.
While Walf can be found on land, it instinctively marches to the nearest water source. It gracefully skims across the water's surface, paying no mind to Kirby. Despite this, Walf is not a harmless foe; Kirby will take damage if he collides with it.
Walf's name may be a corruption of the word "wharf," referencing its aquatic nature. It could also be derived from the word "waif," describing its childlike appearance.
- An early, unused version of Walf can be found within the files of Kirby's Return to Dream Land. It has simpler pupils (which lacks irises) and a bald head with no blue cover over it. This version also has a lighter shell.