You do not want to mess with these guys. They're the bad ones from Japan. And Sega produced a game based on them. This special handcase comes with artificial paper notes and includes a full copy of the game as well as an extra disc and a leaflet with information about the game. There's a different leaflet with a different disc that I got from Germany that doesn't come in this box but I guess they are the two most important items related to this game.