A little pink and white fox pup with white paw tips, muzzle, and heart-dot eyebrows. The inner-ear is beige, while the eyes appear big and black. It holds onto a giant red heart and wears a purple kazaori-eboshi which is on it's head.
In the anime, Shmoopie seems to hold high pride about his abilities, for he thinks he can make his inspirited targets get away with their mischief. However, upon being "bested" by Manjimutt, he admits defeat.
In the game, Shmoopie appears to hold a dark, manipulative nature, as he expresses annoyance at being approached by children for his cute appearance.
Anyone inspirited by Shmoopie behaves cutely and asks "Forgive me like donuts," thus becoming capable of getting away with anything, even the most offensive or irresponsible behavior, since no one can get mad at them. However, this effect seems to fail when the Inspirited target is too ugly, such as Manjimutt.
In the second game, when Shmoopie inspirited Meg during the request "Springdale Star Pt. 1", she became obsessed with being cute.
Shmoopie first appears in Yo-kai Shmoopie, in which he causes Katie to do mean things like deleting Nate's video game data and doodling in his comic book, ruining Bear's fried chicken, beaming Eddie in the face with a dodge ball, and calling Mr. Johnson "four eyes." Due to Shmoopie's effect, she gets away with it by acting cutely. Nate identifies Shmoopie, who boasts that his control over cuteness is unbeatable. Nate counters this by summoning Manjimutt; although Shmoopie tries his hardest, Manjimutt ends up slapped by every girl he tries to flirt with. Shmoopie acknowledges defeat, giving up his Yo-kai Medal to Nate.
"Kyuntaro", is a combination of kyun (A SFX for the sound of a person falling in love) and the common pet name taro.
"Shmoopie", is a corruption of schmoopie, a nickname often given to one's significant other, often seen as sickenly sweet.
His Spanish name, "Pufipatitas" is a combination of "Pufi" (the diminutive of "Puf" the onomatopoeia of something that falls, in this case in tenderness) and "Patitas" (the diminutive of "Patas" (Legs)).
His Brazilian Portuguese name, "Fofucho" is a combination of "Fofo" (Cute) and "Chucho" (Pooch).
Shmoopie's "random" nicknames in Yo-kai Watch 2 are: Teddy, Richie, Awberry, and Cuddles.