Shadow Ninjas is a thrilling hidden-movement board game for 25 players aged 8+, where up to four players embody stealthy ninja cats attempting to infiltrate a manor and steal the Shoguns koi, while one player controls samurai dogs guarding the treasure. With only 20 minutes per round, dice-based movement and line-of-sight mechanics keep gameplay fast and suspenseful. The game fosters strategic thinking, observational skills, deduction, and probability assessment as players bluff, predict movements, and adapt plans on the fly. A compact, family-friendly challenge that blends playful tension with cognitive skill-building.