Can be freed from the Crank-a-kai with Yellow, Five Star, or Special Coins in the present. He can also be found 40,000 meters into the Infinite Tunnel.
As of the Oni Evolution Update, he can also be freed from the Happy-Go-Lucky Crank-a-kai.
Befriended: "How could I lose to... you?! We'll just have to be friends now, I think.
Receiving food (Favorite): "Tasty!"
Loafing: "I need a break."
Freed from the Crank-a-kai:" YOU freed me? Well, I guess we'd better be friends, then."
Medal Swap: "It must have cost you a pretty penny to score a friend like me."
Frostail's Japanese name, Inugami ("dog kami"), refers to the dog spirit with the same name. They are familiars conjured through a complex and cruel ritual in which a dog is turned into a vengeful spirit, that will follow its master's orders to protect them, or even possess people and commit crimes. They are however very dangerous, as their rage is all-consuming and can potentially turn them against the conjurer who created them. Families protected by an inugami are called inugami-mochi (Japanese: 犬神持ち,inugami-mochi), and will only marry their children to those of other inugami-mochi families.
"Frostail" is a contraction of frost tail.
"Nievacolas" is a combination of nieva (snows) and nueve colas (nine tales)