#badfrog - Constantine, the World's Most Wanted Frog is a promotional website published by Disney in March 2014, as a promotion for the film Muppets Most Wanted. The site is run by Constantine, the world's Number One Criminal and Kermit the Frog lookalike.

The site includes videos of Constantine welcoming visitors, an ad for the (fictional) biography Constantine: The Life and Crimes of the World's Number 1 Criminal Mastermind, and a store featuring #badfrog swag. (The store page has a link to the Constantine plush toy sold at the Disney Store; the rest of the Constantine products are listed as "Coming Soon".)

Readers are encouraged to tweet about Constantine, using the hashtag #badfrog; the latest tweets are displayed on the site.