Pizza Dinosaur is a huge restaurant chain with over 6,000 locations (they claim as "the most stores in the world") that is a rival to Mona Pizza. It apparently serves poor quality pizza ("our crust is tough and our sauce is thin"). It first appeared in WarioWare: Twisted!. The employees of Dinosaur Pizza are pushed to the edge when a customer calls, only to tell them that he thought they were Mona Pizza. The angry employees use their dinosaur machines to attack Mona while she is delivering her pizzas. In the end, Mona's monkey friend foils their plans by throwing a banana peel in front of their machine. The latter half of the song accompanying Mona Pizza's commercial is sung by the Dinosaurs and seems to be exclusively about Pizza Dinosaur, indicating that the two rival companies may share commercials. (Although this is unlikely.)
Pizza Dinosaur has not appeared since WarioWare: Twisted!, though it was referenced in WarioWare: Touched!'s secret Mona Pizza souvenir, which included the aforementioned advertising jingle. Its employees, the Dinosaurs, have perhaps become regulars to the WarioWare series in Pizza Dinosaur's absence, though, reappearing in games such as WarioWare: Touched! and WarioWare: Smooth Moves.
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