Mario's younger brother Luigi (John Leguizamo) falls in love archaeologist Daisy. She is kidnapped by the Koopa Cousins, Iggy and Spike, and taken to the another dimension called Dinohattan, a land where dinosaurs evolved to become the main species. Dinohattan is ruled by Koopa (Dennis Hopper), who took over Daisy's father by transforming him into a fungus using a de-evolution gun. Daisy had a piece of meteorite that could be used to merge Dinohattan and Manhattan so Koopa could take over the human world. 