Furgus appears on Mt. Kiuchi near Kemamoto Village in the past.
It also has a chance of appearing up to 2000 m into the EnEn Tunnel.
Befriended(Yo-kai Watch 2): "You have a good head of hair...Can I come with you?"
Receiving food (favourite):"Yum!"
Receiving food (normal): "Hmm..."
Receiving food (disliked):
It's random nicknames are: Fuzzball, Blake, Robin, and Moptop.
Keukegen is based on the youkai of the same name, meaning "hairy, fluffy sight" or "strange and suspicious thing" depending on how it's written: a living mass of hair the size of a dog that will appear from beneath the floorboards when no one is around, and prefers dark, damp places. It is said that those who live in a house inhabited by a keukegen will suffer from weakness and poor health.