Shanghai: Triple Threat, released for the 3DO platform, is a classic tile-matching puzzle video game that was developed and published by Activision. This title, offering a variation of the traditional Mahjong solitaire gameplay, was released in 1994. In this game, players must clear layers of tiles by matching free pairs. It adds the challenge of different layouts and the option to compete against the clock, providing multiple modes to test players' strategy and speed. The game is known for its simple yet addictive gameplay and was one of the many renditions of the Shanghai franchise intended to captivate puzzle enthusiasts.