Wiggler (ハナチャン, Hanachan?) are caterpillar-like insects with a segmented body and comically large nose. Wigglers are most commonly depicted as being yellow (occasionally green) and having a cheerful expression on their faces, they also wear small flowers on their heads. When enraged, which occurs when a Wiggler is injured, the creature turns a bright red colour, gains solid white eyes and fangs and its flower wilts. Wigglers first appear in Super Mario World, being found in wooded areas.
Although usually generic enemies in games, some appearances feature Wigglers, usually gigantic in size, as boss characters. In spin-off games, the appearance of Wigglers is infrequent, although one does appear as an unlockable playable character in Mario Power Tennis and as a boss to race against in Mario Kart DS. In Mario Kart: Double Dash!! there are Wiggler Buses in the Mushroom Bridge and Mushroom City courses, which act as obstacles.
In the Super Mario World animated series Wigglers, though referred to as Caterpillars and always drawn in their angered form, appear in various episodes. A Wiggler also makes an appearance in Super Mario Adventures comic and the taxi cabs of the Super Mario Bros. film are shown to be named Wiggler Taxi in one scene