Shocker is a terrorist organization founded by former remnant members of the Nazi High Command and the enigmatic Great Leader. Its goals are to dominate and enslave the world through advanced science, cyborg super soldiers and acts of destruction. They are a recurring enemy in the Kamen Rider superhero franchise, having gone though many incarnations.
As typical of evil villains from superhero shows, they have had plots to destroy Christmas and take over the world. One of their earliest plots to destroy the holiday was creating a lycanthropy virus to spread around to create a loyal army of cyborg werewolves.