Peek-A-Boo Poker (originally released in Japan as AV Poker by Hacker International) is a famous unlicensed adult game for the NES. Players engage in standard poker matches to unlock adult-themed reward screens. Originally sold via mail-order in Japan, it sold between 30,000 to 50,000 units despite its unofficial status. The Western version, published by Panesian, modified the content to fit different markets. It stands as a prime example of the 1990s trend of combining traditional card gameplay with mature content on home consoles.