Penny Crygor first appeared in Nintendo's WarioWare: Smooth Moves as the granddaughter of inventor Dr. Crygor, and her later storylines highlight her ambition to become a singer. Short sung clips using her name began circulating online as mock production logos, borrowing the style of animated studio intros. Fans adopted this version as a quick identifier for homemade edits and WarioWare content, and its brevity keeps it popular for intros where a longer theme would slow the video down and break the joke before it starts.