Spenp

Spenp appeared in 2013 video game called Yo-Kai Watch. Spenp (Japanese: ムダヅカイ Mudazukai) is a Rank C, Wind-attribute Yo-kai of the Slippery tribe.

A hazel-green clamshell with a zipper poking out of the right of its mouth. It has a long dark pink tongue and is shown holding a 500 yen coin with three gold coins floating around the top of it. Inside of the shell is a golden eye.

Spenp Loves to be wasteful, he believes that spending money boosts the economy through "trickle-down economics" and that greed is good. In the English version, according to the Yo-Kai Wiki, Spenp comes from the 1980s.

Once Spenp inspirits someone, they'll be compelled to splurge on things they don't even particularly want.

Though he has qualms with it, Nate summons him in EP072 to fight the Shady Yo-kai Greesel. Despite being polar opposites, he becomes best friends with Greesel after deciding to pay for his dinner.