Sultan Vinegar reigns as the primary antagonist for most of the Snack World narrative. An evil businessman and strategist, he dominates the world from his headquarters, "The Distillery," attended by devoted consorts called the Vinegarettes. His operations exploit monsters to boost the popularity of his commercial products and expand his corporate empire, Vinegar Ventures.

His background includes orchestrating the destruction of the protagonist's home village, leaving the protagonist as the sole survivor. He later attempts to resurrect the apocalyptic entity known as the Deodragon Smörg Åsbord, threatening the world of Tutti-Frutti. His motivations center on world domination, expressed through ruthless, cartoonish villainy fitting the setting's tone.

Physically, Sultan Vinegar possesses pink skin and medium-length green hair beneath a distinctive white hat. He wears golden jewelry, including a necklace and bracelets, along with a blue vest, black pants, and a brown belt. He is often depicted wielding a black spear with white tips.

His story involves multiple ambiguous returns following apparent defeats. In the "Wrongful Rite" quest, he resurfaces resurrected and reformed, only to vanish again due to another character's interference, though his essence persists. Similarly, "The Dark Dragon Knight" quest initially presents his return, later revealed as part of a virtual reality simulation, leaving his true fate unresolved. These recurring appearances underscore his persistent influence.

The character's name is a pun on vinegar, aligning with Snack World's food-inspired nomenclature. Localization notes further connect his name to culinary elements, such as the French adaptation linking a subordinate to "rice vinegar."