Dennis is the hitman who tries to kill SpongeBob SquarePants and Patrick Star with cleets with giant hyperdermic needles on them in The SpongeBob SquarePants Movie. A hitman (alternately, hit man), also referred to as a contract killer, is a hired assassin, usually in the employ of organized crime. ... Wikiquote has a collection of quotations related to: SpongeBob SquarePants SpongeBob SquarePants is the principal character in the animated television series SpongeBob SquarePants, which first aired on May 1, 1999 on Nickelodeon. ... To meet Wikipedias quality standards, this article or section may require restructuring. ... The SpongeBob SquarePants Movie is a full-length feature film based on Nickelodeons hit TV show SpongeBob SquarePants. ...

His Friendship With Plankton

Plankton gave Dennis 50 grand to kill SpongeBob and Patrick so they don't go to Shell City to get King Neptune's Crown. King Neptune (voiced by John OHurley in the TV series, voiced by Jeffrey Tambor in the movie) is a fictional character in Nickelodeons animated television series SpongeBob SquarePants. ...

Shell City

When SpongeBob and Patrick get to the gift shop owned by the cyclops (Really a diver) it turns out the shop is Shell City. They don't find that out until Patrick repeatedly says "Shell City". The sign says "Shell City - Marine gifts and sundries.