A 1997 arcade game developed by Taito (now SquareEnix) subsequently ported to PlayStation and Game Boy Color.
The arcade version was re-released in 2006 as part of Taito Legends 2 for PlayStation 2, Xbox and PC. Later the game was released on the PlayStation Network.
The general objective of the game is to destroy gem-like blocks using a ball and paddle.
The basic storyline centers around the world of "GemStone", where science and magic coexist. Twelve precious gems are stolen, each one coming into the possession of a person with high magic powers. These people dominate the world. Each of the game's twelve characters has an individual story that follows his or her quest to collect all of the gems in order to realize his or her personal dreams.