Chilhuahua in Yo-kai Watch 1

Fuse Pupsicle with a Snowstorm Cloak. This item can be obtained by completing the post-game quest Insulting the Egg, given by Chilhuahua himself on Liar Mountain, or completing the "Snap Pupsicle!" Yo-kai Cam challenge. More of the same item can be found in Terror Time chests after completing said quest.

Chilhuahua also appears in shallows by the Catfish Pond during the day on Mount Wildwood.