Jack M. Crazyfish is a big fish that appears in the episode: Blackened Sponge. He is a fish in SpongeBob's dreams, but is actually a real person who lives in Bikini Bottom. SpongeBob gets a black eye from a wrench being stuck in his eye, but makes up a story that he got it from fighting Crazyfish. Crazyfish then comes to the Krusty Krab because he has heard that SpongeBob makes great Krabby Patties, and he is hungry for one. When SpongeBob spills his meal on him, though, he gets angry at him. They played Rock-Paper-Scissors, but Crazyfish cheated.