Mondo Burger is a fictional fast-food restaurant featured in the movie "Good Burger." It is known for its oversized burgers, which are much larger than typical fast-food offerings. The restaurant's marketing emphasizes its massive portions, attracting customers looking for a unique dining experience. In the film, Mondo Burger competes with the smaller Good Burger establishment, leading to a rivalry between the two. The restaurant is characterized by its flashy advertising and modern design, appealing to a younger audience. Its exaggerated menu items serve as a humorous commentary on fast-food culture.