Inferno Cop returns in a set of three special episodes that mix action and comedy. The first one brings in cameo appearances by characters from Little Witch Academia. In the third, Inferno Cop makes a trip to New Jersey and runs into Donald Trump there. These extras were only ever shown at Trigger's panels, at AnimeNEXT in 2015 and 2016 and at Anime Expo in 2015 and 2017, which makes them rare bonus material for followers of the original series.