Big Brother: Ninja Edition is a game based on the TV show Big Brother, but with ninjas competing instead of celebrities. Players create a ninja character and participate in challenges to earn points from viewers. Ninjas can level up their skills and defeat other ninjas in arena battles to avoid elimination. Players can also explore the dojo, find bonuses, and vote for their favorite ninjas to help them earn more points. The goal is to acquire the most points to win the Big Ninja Trophy.