Underworld Gatekeeper

The Underworld Gatekeeper is a minor villain in the video game; Kid Icarus: Uprising. It's the final guardian of Medusa's Castle.

History
While Pit was attempting to reach Medusa's Castle, he eventually encounters the Underworld Gatekeeper. It appeared as the castle's last line of defense. Despite giving his best efforts, Pit's couldn't destroy the Gatekeeper due to it's thick armor. After a long fight, Dark Pit appears right out of nowhere, and delivers a finishing blow to the Underworld Gatekeeper, causing the machine to explode.