In a dystopian future where lab rats have evolved to possess human-level intelligence, you play as Rizzo, a witty and rebellious lab rat navigating a world of scientific tyranny. Your quest begins when you uncover an insidious plot by the corrupt veterinarian organization, MRV (Mice Research Villains), who plans to exploit ratkind for their experimental gain. Venture through various labs, each with its own twisted experiments and eccentric scientists, as you collect intelligence, rally fellow lab rats, and devise cunning strategies to reclaim your freedom. Make choices that affect your fate, confront rival rodents, and challenge the morally gray ethics of science with your sharp sense of humor.