"Raptor: Call of the Shadows (often Raptor for short) is a 2D raster graphics vertical scrolling shoot 'em up single player game for the x86 PC written for MS-DOS, by Cygnus Studios (which has since changed its name to Mountain King Studios). It was published by Apogee Software on April 1, 1994. In 1999, Mountain King Studios re-released Raptor as a native Windows program." "The story of the game indicates that "In the future as a mercenary flying the super-tech Raptor, you'll be sent on interplanetary missions to knock off top competitors of MegaCorps." Source: Wikipedia, Raptor: Call of the Shadows , available under the CC-BY-SA License.