Mouse: P.I. For Hire: Full Mission List and How Long It Takes
The GameSpot piece details that Mouse: P.I. For Hire takes about 7–9 hours to finish the main campaign and 14–16 hours to 100% the game, with no New Game Plus. It covers 24 main missions, notes optional side jobs, and confirms three difficulties (Rookie, Detective, Supersleuth). A beginner’s guide is referenced to help with collectibles and save strategy.