From the Super Mario Wiki, the Mario encyclopedia
Bones are a skeletal variant of Kritter in Donkey Kong 64. They appear in Fungi Forest (in the nighttime) and Creepy Castle, both in which they appear semi-frequently. They also appear in two of the later Battle Arena Pad stages, of DK Isles and Creepy Castle.
Unlike normal Kritters, Bones attack by swinging their bone club at the active Kong. Bones can be defeated after taking either one, two, or three hits. This is based on which body parts that the Kongs hit first, usually one of Bones' feet. Upon being defeated, Bones lose balance and collapse on the ground. The Kongs can instantly defeat a Bones by throwing an Orange at one or by using their musical instrument.
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