Mona is one of the main characters in the WarioWare series. She is one of the original employees of WarioWare, Inc. and works part time at many establishments in Diamond City that are all owned by Manager Joe while competing with a group called The Dinosaurs. She always wears different outfits in every game she appears, with the exception of WarioWare, Inc.: Mega Party Game$ (mainly because it's a remake of WarioWare, Inc.: Mega Microgames). Mona is believed to be Wario's lover. She is similar to Sonic the Hedgehog's girlfriend Amy Rose.