MOUSE: P.I. For Hire is a first-person shooter styled after 1930s rubber-hose cartoons, following a hard-boiled mouse private investigator through a crime-ridden, noir-flavored city.

Fast gunplay and a hand-drawn black-and-white look drive the action, while the detective story gives each shootout a pulpy mystery backdrop, aimed at players who want retro-styled shooting with a distinctive animated visual identity.