Wriggle Nightbug is a fictional character from the Touhou Project series, first appearing as the first stage boss in 'Touhou 8: Imperishable Night.' She is a youkai with the appearance and abilities of a firefly, allowing her to control insects. Despite her low position in the hierarchy of youkai, Wriggle is depicted as somewhat prideful and ambitious. Her role in the series is primarily as an early obstacle for the player, but she is also a fan-favorite among the Touhou community for her unique design and personality.