Color TV-Game 6 is the first Color TV-Game ever released. It was released only in Japan in 1977, and featured only one game; Light Tennis, which looked and played much like Pong. The game featured 6 different modes, such as the original, as well as others with different ways to play pong such as ones with obstacles. In Japan, it sold over a million copies and was successful enough to warrant a sequel titled Color TV-Game 15.