Tired of being seen as a joke, Condiment King is one of the three low time villains to take over Arkham Island, but when The Joker hears of the takeover, he reminds Condiment King of who made him and who can destroy him. 

King is very much unhinged, a bit of a lunatic and a traditional supervillain in the sense that he is very goofy and full of himself and quite literally cannot help but make condiment puns as a result of Joker brainwashing.

His character is much more deeper than the surface shows in this intepretation, and will likely leave the viewer wishing his actual backstory was this deep.