Hit up the source link to play the game for free, and if a game based on "The Little Prince" doesn't do much for you, at least check out the Behind the Scenes section -- coding geeks should appreciate the deeper explanation as to how the web app was built.
The army of lawyers and editors at Westlaw and Lexis do this now, coding cases with helpful symbols like red flags to warn lawyers that a particular section of a case is no longer valid.