Short answers, pulled from the story.
Polygon Magic is best known for Incredible Crisis and the Galerians series. Incredible Crisis released in 1999 on both arcade and PlayStation, and Galerians launched the same year on PlayStation, later receiving a sequel, Galerians: Ash, in 2002.
Polygon Magic has developed games for arcade cabinets, PlayStation, PlayStation 2, Xbox, GameCube, Wii, Nintendo DS, Nintendo 3DS, Game Boy Color, and mobile social platforms including GREE, Mobage, and Facebook, as well as pachinko machines.
Porimaji Games is Polygon Magic's own social game platform, launched in 2010. It gave the studio a direct channel to players separate from third-party networks like GREE and Mobage.
Polygon Magic helped GREE develop its first-party titles and published titles on the GREE platform, including Tsuri Sta in 2008 and Sengoku Kingdom in 2011. The studio became one of the top developers and publishers in the Japanese mobile social game field.
Polygon Magic's arcade titles include Fighter's Impact (1996), Incredible Crisis (1999), Wangan Midnight Maximum Tune (2004), Thrill Drive 3 (2005), OutRun 2 SP SDX (2006), Silent Hill: The Arcade (2007), and Akumajo Dracula: The Arcade (2009), among others.
Polygon Magic's earliest recorded game is Fighter's Impact, an arcade title released in 1996.